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  1. Employees

Språkvelger

Norsk

Gustav Grimstad

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Gustav Grimstad

Professor
Department of Civil and Environmental Engineering

gustav.grimstad@ntnu.no
+4773596870 +4741300948 Byggteknisk, Gløshaugen, Høgskoleringen 7a
About Publications Teaching Outreach

About

Research topics:

  • Various projects concerning soil modelling. This includes:
    • Modelling and understanding creep in soft clays and other aspects of soil behaviour.
    • Development and implementation of a number of soil models, including the NGI-ADP model that is now part of a commercial finite element program (www.plaxis.nl).
  •  Progressive failure in sensitive clays. This includes:
    • Work with the implementation of a regularisation technique for modelling of brittle material behaviour in finite element calculations
    • Back calculations to landslides involving quick clay

Competencies

  • Geomechanics
  • Geotechnics
  • Soil Modeling

Publications

  • Chronological
  • By category
  • All publications registered in NVA

2025

  • Bhattarai, Tulasi Ram; Bhandary, Netra Prakash; Grimstad, Gustav. (2025) Comparative Analysis and Performance Evaluation of SSC, n-SAC, and Creep-SCLAY1S Soil Creep Models in Predicting Soil Settlement. Geotechnics
    Academic article
  • Dadrasajirlou, Davood; Sæther, Teodor Opland; Falstad, Tobias; Grimstad, Gustav; Degago, Samson Abate; Watn, Arnstein. (2025) Undrained effective stress-based stability analyses of natural slopes considering formation history effects. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Grimstad, Gustav; Ul Hasan, Fahmid; Degago, Samson Abate; Dadrasajirlou, Davood; Watn, Arnstein. (2025) Undrained shear strength anisotropy factors for natural slopes: pitfalls and remedies. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kirstein, A.; Locat, A.; Jostad, Hans Petter; Grimstad, Gustav; Locat, P.. (2025) Numerical Modelling of In Situ Stresses to Investigate the Initiation of Spreads in Sensitive Clay. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Degago, Samson Abate; Grimstad, Gustav; Dadrasajirlou, Davood; Watn, Arnstein; Brattlien, Kjetil; Dolva, Bjørn K.; Haugen, Ellen; Strand, Stein Are. (2025) A coherent framework for stability assessment of natural slopes - robustness and safety. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Pan, Yutao; Andreassen, Håvard Branstad; Ler, Haakon Woie; Nordal, Steinar; Helle, Tonje Eide; Valsson, Sigurdur Mar; Dørum, Cato; Leirvik, John; Juliussen, Håvard; Brattlien, Kjetil. (2025) In-situ detection of quick clay using modified penetration test apparatus. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Søvik, Marius Mathisen; L'Heureux, Jean-Sébastien; Rødvand, Laura Anne; Grimstad, Gustav. (2025) A Novel Framework for Predicting Landslide Mechanism in Norwegian Quick Clays. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Tao, Rui; Hu, Zhicheng; Lau Leong Lee, Albert; Grimstad, Gustav; Pan, Yutao. (2025) Evolution of isolated heaving defects for vertical rail displacements: a multi-disciplinary study. International Journal of Rail Transportation
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Dadrasajirlou, Davood. (2025) Integration of hyperplastic models in strain space. Géotechnique
    Academic article
  • Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Aalberg, Arne; Shen, Yuanjie; Ingeman-Nielsen, Thomas. (2025) Modeling the degradation of Saline marine permafrost: the influence of soil freezing characteristics. Canadian geotechnical journal (Print)
    Academic article

2024

  • Sukuvara, Dan Sergei; Vaslestad, Jan; Scibilia, Elena; Baardvik, Gunvor; Grimstad, Gustav. (2024) A Critical Review of Methods for Backfill Soil Modulus in Design of Flexible Culverts. Transportation Research Record
    Academic article
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Degago, Samson Abate; Houlsby, G. T.. (2024) Modified cam clay bounding surface hyper-viscoplastic model. Géotechnique
    Academic article
  • Tran, Quoc Anh; Sørlie, Erik Ravik; Grimstad, Gustav; Eiksund, Gudmund Reidar; Takahashi, Hidenori; Sassa, Shinji. (2024) Influence of sediment permeability in seismic-induced submarine landslide mechanism: CFD-MPM validation with centrifuge tests and analysis. Computers and geotechnics
    Academic article
  • Tran, Quoc Anh; Rogstad, Agnete; Depina, Ivan; Fernándes, Fabricio; Alene, Gebray Habtu; Grimstad, Gustav; Nordal, Steinar. (2024) 3D large deformation modeling of the 2020 Gjerdrum quick clay landslide. Canadian geotechnical journal (Print)
    Academic article

2023

  • Tran, Quoc Anh; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2023) MPMICE: A hybrid MPM-CFD model for simulating coupled problems in porous media. Application to earthquake-induced submarine landslides. International Journal for Numerical Methods in Engineering
    Academic article
  • Rødvand, Laura Anne; Jostad, Hans Petter; Grimstad, Gustav; Andresen, Lars. (2023) Modelling mesh independent failure loads of a soft strain-softening clay using a rate dependent model. Computers and geotechnics
    Academic article
  • Long, Michael; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Sponås, Egil Berg Antoniazzi; Bjertness, Endre; Ritter, Stefan. (2023) Behaviour of 60-year-old trial embankments on peat. Engineering Geology
    Academic article
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Nordal, Steinar. (2023) A set of hyper-viscoplastic critical state models with different friction mobilisation criteria. International Journal of Solids and Structures
    Academic article
  • Attari, Yeganeh; Jostad, Hans Petter; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2023) Evaluation of Pile Driving Effects on Slope Stability in Clay. Geotechnical and Geological Engineering
    Academic article

2022

  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Lubbad, Raed Khalil. (2022) Report on calibrated and validated numerical models to estimate site specific stability of coastal infrastructure in a changing climate with thawing permafrost. NUNATARYUK project
    Research report
  • Gao, Hao; Ghoreishian Amiri, Seyed Ali; Kjelstrup, Signe; Grimstad, Gustav; Loranger, Benoit; Scibilia, Elena. (2022) Formation and growth of multiple, distinct ice lenses in frost heave. International journal for numerical and analytical methods in geomechanics (Print)
    Academic article
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) On the isotache viscous modelling of clay behaviour using the hyperplasticity approach. Géotechnique
    Academic article
  • Long, Mike; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Trafford, Andrew; Degago, Samson Abate; Heureux, Jean-Sebastien L. (2022) Engineering properties of Norwegian peat for calculation of settlements. Engineering Geology
    Academic article
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) Hyper-Viscoplastic Modelling of Clay Behaviour. Norges teknisk-naturvitenskapelige universitet
    Doctoral thesis
  • Rødvand, Laura Anne; Jostad, Hans Petter; Grimstad, Gustav; Andresen, Lars. (2022) Strain localisation in sensitive clays: can rate dependency provide mesh independent results?. Computers and geotechnics
    Academic article
  • Long, Michael; Grimstad, Gustav; Trafford, Andrew. (2022) Prediction of embankment settlement on Swedish peat using the soft soil creep model. Proceedings of the Institution of Civil Engineers : Geotechnical Engineering
    Academic article
  • Tran, Quoc Anh; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) MPMICE: A hybrid MPM-CFD model for simulating coupled problems in porous media. Application to earthquake-induced submarine landslides. arXiv.org
    Academic article
  • Grimstad, Gustav; Nordal, Steinar; Solberg, Inger-Lise; Ottesen, Hanne Bratlie. (2022) Om kvikkleire og skredet den 30. desember 2020 i Gjerdrum. Naturen
    Academic article

2021

  • Lyu, Chuangxin; Nishimura, Satoshi; Ghoreishian Amiri, Seyed Ali; Zhu, Feng; Eiksund, Gudmund Reidar; Grimstad, Gustav. (2021) Pore-water pressure development in a frozen saline clay under isotropic loading and undrained shearing. Acta Geotechnica
    Academic article
  • Torgersrud, Øyvind; Mohus, Oda; Eikebrokk, Anna; Grimstad, Gustav. (2021) Simulations of Characteristic Sand Behavior by DEM. Norges teknisk-naturvitenskapelige universitet
    Master thesis
  • Lyu, Chuangxin; Grimstad, Gustav; Nishimura, Satoshi. (2021) Pore pressure coefficient in frozen soils. Géotechnique
    Academic article
  • Kjelstrup, Signe; Ghoreishian Amiri, Seyed Ali; Loranger, Benoit; Gao, Hao; Grimstad, Gustav. (2021) Transport coefficients and pressure conditions for growth of ice lens in frozen soil. Acta Geotechnica
    Academic article
  • Grimstad, Gustav; Long, Michael; Dadrasajirlou, Davood; Ghoreishian Amiri, Seyed Ali. (2021) Investigation of Development of the Earth Pressure Coefficient at Rest in Clay During Creep in the Framework of Hyper-Viscoplasticity. International Journal of Geomechanics
    Academic article
  • Aamodt, Magnus Træland; Grimstad, Gustav; Nordal, Steinar. (2021) Effect of Strength Anisotropy on the Stability of Natural Slopes. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Gao, Hao; Kjelstrup, Signe. (2021) Numerical modelling of distinct ice lenses in frost heave. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article

2020

  • Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Høyland, Knut Vilhelm; Ingeman-Nielsen, Thomas. (2020) Comparison of Geoacoustic Models for Unfrozen Water Content Estimation. Journal of Geophysical Research (JGR): Solid Earth
    Academic article
  • Hoogstraten, Sara C. van; Hermans, Sebastiaan J.; Versteijlen, Willem G.; Page, Ana M.; Grimstad, Gustav; Pisanò, Federico; Metrikine, Andrei V.. (2020) The Macro-Element Method for Offshore Wind Turbines Exposed to Extreme Loads in the Asia-Pacific Region.
    Academic chapter
  • Tistel, Joar; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2020) A macro model for shallow foundations on granular soils describing non-linear foundation behavior. Computers & structures
    Academic article
  • Grimstad, Gustav; Dadrasajirlou, Davood; Ghoreishian Amiri, Seyed Ali. (2020) Modelling creep in clay using the framework of hyper-viscoplasticity. Géotechnique Letters
    Academic article
  • Grimstad, Gustav; Paniagua Lopez, Ana Priscilla; Weerdt, Klaartje De. (2020) På vegen mot karbonnegativ stabil grunn. Byggeindustrien
    Popular science article

2019

  • Page, Ana M.; Grimstad, Gustav; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2019) A macro-element model for multidirectional cyclic lateral loading of monopiles in clay. Computers and geotechnics
    Academic article
  • Rødvand, Laura Anne; Andresen, Lars; Grimstad, Gustav. (2019) Case study of a road bridge hit by a landslide in highly sensitive clay.
    Non-fiction chapter
  • Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Gao, Hao; Ingeman-Nielsen, Thomas; Grimstad, Gustav. (2019) Joint Acoustic and Electrical Measurements for Unfrozen Water Saturation Estimate—A Review.
    Academic chapter
  • Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Nordal, Steinar. (2019) Relations and links between soil mechanics, porous media physics, physiochemical theory, and effective medium theory. Frontiers in Physics
    Academic literature review

2018

  • Grimstad, Gustav; Rønningen, Jon Abusland; Nordal, Steinar. (2018) Application of a generalized continuous Mohr–Coulomb criterion.
    Academic chapter
  • Rønningen, Jon Abusland; Grimstad, Gustav; Nordal, Steinar. (2018) On the convexity of yield and potential surfaces in rotational hardening critical state models.
    Academic chapter
  • Nordal, Steinar; Grimstad, Gustav; Jordbakke, Tormod; Rabstad, Kristoffer; Isachsen, Marit. (2018) On modelling of anisotropic undrained strength for non-horizontal terrain.
    Academic chapter
  • Bjerre, Jesper; Rønningen, Jon Abusland; Grimstad, Gustav; Nordal, Steinar. (2018) Effective Stress based Model for Natural Soft Clays incorporating Restructuration.
    Academic chapter
  • Skau, Kristoffer Skjolden; Grimstad, Gustav; Page, Ana M.; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2018) A macro-element for integrated time domain analyses representing bucket foundations for offshore wind turbines. Marine Structures
    Academic article
  • Page, Ana M.; Grimstad, Gustav; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2018) A macro-element pile foundation model for integrated analyses of monopile-based offshore wind turbines. Ocean Engineering
    Academic article
  • Cicchetti, Lorenzo; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Ingeman-Nielsen, Thomas. (2018) Thermo-Hydro-Mechanical simulations of Artificial Ground Freezing.
    Academic chapter
  • Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Watn, Arnstein; Hoff, Inge. (2018) Frost protection in roads using insulation materials.
    Academic chapter

2017

  • Ervik, Åse; Høyland, Knut Vilhelm; Grimstad, Gustav; Nord, Torodd Skjerve. (2017) A continuum model of large deformation continuous ductile ice crushing. Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions
    Academic article
  • Tistel, Joar; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2017) Testing and modeling of cyclically loaded rock anchors. Journal of Rock Mechanics and Geotechnical Engineering
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2017) Constitutive Model for Long-Term Behavior of Saturated Frozen Soil.
    Academic chapter
  • Rostami, Hooman; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2017) Back analysis of Caen’s test by the recently developed frozen/unfrozen soil. Plaxis Bulletin
    Popular science article
  • Grimstad, Gustav; Karstunen, Minna; Jostad, Hans Petter; Sivasithamparam, Nallathamby; Mehli, Magne; Zwanenburg, Cor; Evert, den Haan; Ghoreishian Amiri, Seyed Ali; Boumezerane, Djamalddine; Kadivar, Mehdi. (2017) Creep of geomaterials – some finding from the EU project CREEP. European Journal of Environmental and Civil Engineering (EJECE)
    Academic article

2016

  • Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2016) Enhanced permafrost creep model– user manual and documentation. PIAG_GA_2011‐286397‐R6
    Research report
  • Rønningen, Jon A.; Grimstad, Gustav; Nordal, Steinar. (2016) Modelling soft Scandinavian clay behavior using the asymptotic state.
    Academic chapter
  • Tistel, Joar; Grimstad, Gustav. (2016) A macro model description of the non-linear anchor block foundation behavior.
    Academic chapter
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Kadivar, Mehdi. (2016) An elastic-viscoplastic model for saturated frozen soils. European Journal of Environmental and Civil Engineering (EJECE)
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Kadivar, Mehdi; Nordal, Steinar. (2016) Constitutive model for rate-independent behavior of saturated frozen soils. Canadian geotechnical journal (Print)
    Academic article
  • Grimstad, Gustav; Haji Ashrafi, Mohammad Ali; Degago, Samson Abate; Nordal, Steinar; Emdal, Arnfinn. (2016) Discussion of ‘Soil creep effects on ground lateral deformation and pore water pressure under embankments’. Geomechanics and Geoengineering
    Academic article

2015

  • Grimstad, Gustav; Mehli, Magne; Degago, Samson Abate. (2015) Creep in Clay During the First Few Years After Construction.
    Academic chapter
  • Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2015) A Thermo-Hydro-Mechanical Constitutive Model for Saturated Frozen Soil.
    Academic chapter
  • Grimstad, Gustav; Mehli, Magne; Degago, Samson Abate. (2015) Is creep analysis creeping into practice?.
    Academic chapter
  • Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2015) A new concept in developing a constitutive model for frozen soils.
    Academic chapter
  • Boumezerane, Djamalddine; Grimstad, Gustav; Makdisi, Andrew. (2015) A framework for peat behaviour based on hyperplasticity principles.
    Academic chapter
  • Haji Ashrafi, Mohammad Ali; Grimstad, Gustav. (2015) Implementation of a critical state soft soil creep model with shear stiffness.
    Academic chapter
  • Jostad, Hans Petter; Grimstad, Gustav; Andersen, Knut H; Sivasithamparam, Nallathamby. (2015) A FE procedure for calculation of cyclic behaviour of offshore foundations under partly drained conditions.
    Academic chapter
  • Grimstad, Gustav; Degago, Samson Abate; Boumezerane, Djamalddine. (2015) Discussion of “Viscous behaviour of clays in one-dimensional compression”. Canadian geotechnical journal (Print)
    Academic article
  • Boumezerane, Djamalddine; Grimstad, Gustav. (2015) A Rheological Model for Peat That Accounts for Creep.
    Academic chapter
  • Grimstad, Gustav; Haji Ashrafi, Mohammad Ali; Kadivar, Mehdi. (2015) PROFILE: Creep of geomaterials. PAN european networks science and technology
    Popular science article
  • Grimstad, Gustav. (2015) Bjørvika synker. Byggeindustrien
    Popular science article
  • Degago, Samson Abate; Grimstad, Gustav. (2015) Discussion of “Experimental investigation on the creep behavior of an unsaturated clay”. Canadian geotechnical journal (Print)
    Academic article

2014

  • Degago, Samson; Grimstad, Gustav. (2014) Significance of sample quality in settlement analysis of field cases.
    Academic chapter
  • Grimstad, Gustav; Rønningen, Jon A.; Nøst, Hilde Aas. (2014) Use of IWAN models for modelling anisotropic and cyclic behavior of clays.
    Academic chapter
  • Jostad, Hans Petter; Grimstad, Gustav; Andersen, Knut H; Saue, Morten; Shin, Yunsup; You, D. (2014) A FE Procedure for Foundation Design of Offshore Structures - Applied to Study a Potential OWT Monopile Foundation in the Korean Western Sea. Geotechnical Engineering
    Academic article
  • Grimstad, Gustav; Mehli, Magne; Jostad, Hans Petter. (2014) Forskningstemaet: krypoppførsel av geomaterialer og innlemmelse i geoteknisk prosjektering.Hvordan best utføre krypmodellering?.
    Academic chapter
  • Rønningen, Jon A.; Gavel-Solberg, Vegard; Grimstad, Gustav. (2014) Effective stress model for soft Scandinavian clays.
    Academic chapter
  • Cai, Fang; Eiksund, Gudmund Reidar; Grimstad, Gustav; Jostad, Hans Petter. (2014) An anisotropic shear strength model for cyclic accumulated plastic strain of overconsolidated clay. Electronic Journal of Geotechnical Engineering
    Academic article
  • Bonadies, F.; Nordal, Steinar; Gylland, Anders Samstad; Grimstad, Gustav; Jostad, Hans Petter; Cuomo, S.; Cascini, L.. (2014) Numerical methods for simulation of downward progressive landslides.
    Academic chapter
  • Fornes, Petter; Grimstad, Gustav; Jostad, Hans Petter. (2014) Effekt av progressiv bruddutvikling for utbygging i områder med kvikkleire : tilbakeregning av Vestfossenskredet. Norges vassdrags- og energidirektorat
    Other type of report
  • Grimstad, Gustav; Jostad, Hans Petter. (2014) Effekt av progressiv bruddutvikling for utbygging i områder med kvikkleire: numerisk metode for beregning av udrenert brudd i sensitive materialer. Norges vassdrags- og energidirektorat
    Other type of report

2013

  • Degago, Samson Abate; Grimstad, Gustav. (2013) Evaluation of creep hypotheses A and B based on relevant laboratory tests.
    Academic chapter
  • Degago, Samson; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2013) Misconceptions about experimental substantion of creep hypotheis A.
    Academic chapter
  • Skau, Kristoffer Skjolden; Andresen, Lars; Jostad, Hans Petter; Fornes, Petter; Grimstad, Gustav; Page, Ana. (2013) Stability and deformations of Zelazny Most dam - One of the world's largest deponies for copper tailings.
    Academic chapter
  • Degago, Samson; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2013) Misconceptions about experimental substantiation of creep hypothesis A.
    Academic chapter
  • Grimstad, Gustav; Rønningen, Jon A.; Benz, Thomas; Jostad, Hans Petter; Haan, Evert Den; Qi, Jilin. (2013) User manual for the creep database. NTNU
    Research report
  • Grimstad, Gustav; Melhus, Ole; Degago, Samson Abate; Ebeltoft, Roger Guldvik. (2013) Modeling of rock fall impact using discrete element method (DEM.
    Academic chapter

2012

  • Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav. (2012) Generalized constitutive model for stabilized quick clay. Global Journal of Engineering Research
    Academic article
  • Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav. (2012) Constitutive Model for Cemented Quick Clay in Deep-Mix Stabilization. Global Journal of Engineering Research
    Academic article
  • Grimstad, Gustav; Andresen, Lars; Jostad, Hans Petter. (2012) NGI-ADP: Anisotropic shear strength model for clay. International journal for numerical and analytical methods in geomechanics (Print)
    Academic article
  • Grimstad, Gustav; Jostad, Hans Petter. (2012) Stability analyses of quick clay using FEM and an anisotropic strain softening model with internal length scale.
    Academic chapter

2011

  • Grimstad, Gustav; Jostad, Hans Petter. (2011) Effekt av progressive brudd i sensitive leirer.
    Academic chapter
  • Andresen, Lars; Saygili, Gökhan; Grimstad, Gustav. (2011) Finite element analysis of the Saint-Alban embankment failure with an anisotropic undrained strength model.
    Academic chapter
  • Jostad, Hans Petter; Grimstad, Gustav. (2011) Comparison of distribution functions for the non-local strain approach.
    Academic chapter
  • Degago, Samson Abate; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar; Olsson, Mats. (2011) Use and misuse of the isotache concept with respect to creep hypotheses A and B. Géotechnique
    Academic article
  • Degago, Samson Abate; Nordal, Steinar; Grimstad, Gustav; Jostad, Hans Petter. (2011) Analyses of Väsby test fill according to creep hypothesis A and B.
    Academic chapter

2010

  • Degago, Samson Abate; Jostad, Hans Petter; Olsson, Mats; Grimstad, Gustav; Nordal, Steinar. (2010) Time- and stress-compressibility of clays during primary consolidation.
    Academic chapter
  • Grimstad, Gustav; Degago, Samson Abate. (2010) A non-associated creep model for structured anisotropic clay (n-SAC).
    Academic chapter
  • Grimstad, Gustav; Degago, Samson Abate; Nordal, Steinar; Karstunen, Minna. (2010) Modeling creep and rate effects in structured anisotropic soft clays. Acta Geotechnica
    Academic article

2009

  • Degago, Samson Abate; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2009) The non-uniqueness of the end-of-primary (EOP) void ratio-effective stress relationship.
    Academic chapter
  • Grimstad, Gustav. (2009) Development of effective stress based anisotropic models for soft clays. Norges teknisk-naturvitenskapelige universitet
    Doctoral thesis

2008

  • Grimstad, Gustav; Degago, Samson Abate; Nordal, Steinar; Karstunen, Minna. (2008) Modelling creep and rate effects using the time resistance concept in a model for anisotropy and destructuration.
    Academic chapter
  • Grimstad, Gustav; Bujulu, Pancras Mugishagwe Syldion; Nordal, Steinar. (2008) A generalized constitutive model for stabilized quick clay.
    Academic chapter
  • Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav; Nordal, Steinar; Grande, Lars Olav. (2008) An experimentally-based constitutive model for deep-mix stabilized quick clay.
    Academic chapter

2007

  • Emdal, Arnfinn; Priol, Gregoire; Grimstad, Gustav; Lohren, A.H.. (2007) Numerical analysis of the effect of sleepers on the lateral displacement of railway track.
    Academic chapter

2006

  • Thakur, Vikas Kumar Singh; Nordal, Steinar; Grimstad, Gustav. (2006) Phenomenological issues related to strain localization in sensitive clays. Geotechnical and Geological Engineering
    Academic article
  • Grimstad, Gustav; Nordal, Steinar; Athanasiu, Corneliu. (2006) A constitutive model for undrained anisotropic behaviour of clays.
    Academic chapter

2005

  • Grimstad, Gustav; Thakur, Vikas Kumar Singh; Nordal, Steinar. (2005) Experimental observation on formation and propagation of shear zone in Norwegian quick clay.
    Academic chapter

Journal publications

  • Bhattarai, Tulasi Ram; Bhandary, Netra Prakash; Grimstad, Gustav. (2025) Comparative Analysis and Performance Evaluation of SSC, n-SAC, and Creep-SCLAY1S Soil Creep Models in Predicting Soil Settlement. Geotechnics
    Academic article
  • Dadrasajirlou, Davood; Sæther, Teodor Opland; Falstad, Tobias; Grimstad, Gustav; Degago, Samson Abate; Watn, Arnstein. (2025) Undrained effective stress-based stability analyses of natural slopes considering formation history effects. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Grimstad, Gustav; Ul Hasan, Fahmid; Degago, Samson Abate; Dadrasajirlou, Davood; Watn, Arnstein. (2025) Undrained shear strength anisotropy factors for natural slopes: pitfalls and remedies. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kirstein, A.; Locat, A.; Jostad, Hans Petter; Grimstad, Gustav; Locat, P.. (2025) Numerical Modelling of In Situ Stresses to Investigate the Initiation of Spreads in Sensitive Clay. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Degago, Samson Abate; Grimstad, Gustav; Dadrasajirlou, Davood; Watn, Arnstein; Brattlien, Kjetil; Dolva, Bjørn K.; Haugen, Ellen; Strand, Stein Are. (2025) A coherent framework for stability assessment of natural slopes - robustness and safety. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Pan, Yutao; Andreassen, Håvard Branstad; Ler, Haakon Woie; Nordal, Steinar; Helle, Tonje Eide; Valsson, Sigurdur Mar; Dørum, Cato; Leirvik, John; Juliussen, Håvard; Brattlien, Kjetil. (2025) In-situ detection of quick clay using modified penetration test apparatus. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Søvik, Marius Mathisen; L'Heureux, Jean-Sébastien; Rødvand, Laura Anne; Grimstad, Gustav. (2025) A Novel Framework for Predicting Landslide Mechanism in Norwegian Quick Clays. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Lyu, Chuangxin; Nishimura, Satoshi; Ghoreishian Amiri, Seyed Ali; Zhu, Feng; Eiksund, Gudmund Reidar; Grimstad, Gustav. (2021) Pore-water pressure development in a frozen saline clay under isotropic loading and undrained shearing. Acta Geotechnica
    Academic article
  • Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav. (2012) Generalized constitutive model for stabilized quick clay. Global Journal of Engineering Research
    Academic article
  • Page, Ana M.; Grimstad, Gustav; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2019) A macro-element model for multidirectional cyclic lateral loading of monopiles in clay. Computers and geotechnics
    Academic article
  • Tran, Quoc Anh; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2023) MPMICE: A hybrid MPM-CFD model for simulating coupled problems in porous media. Application to earthquake-induced submarine landslides. International Journal for Numerical Methods in Engineering
    Academic article
  • Gao, Hao; Ghoreishian Amiri, Seyed Ali; Kjelstrup, Signe; Grimstad, Gustav; Loranger, Benoit; Scibilia, Elena. (2022) Formation and growth of multiple, distinct ice lenses in frost heave. International journal for numerical and analytical methods in geomechanics (Print)
    Academic article
  • Rødvand, Laura Anne; Jostad, Hans Petter; Grimstad, Gustav; Andresen, Lars. (2023) Modelling mesh independent failure loads of a soft strain-softening clay using a rate dependent model. Computers and geotechnics
    Academic article
  • Tao, Rui; Hu, Zhicheng; Lau Leong Lee, Albert; Grimstad, Gustav; Pan, Yutao. (2025) Evolution of isolated heaving defects for vertical rail displacements: a multi-disciplinary study. International Journal of Rail Transportation
    Academic article
  • Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Høyland, Knut Vilhelm; Ingeman-Nielsen, Thomas. (2020) Comparison of Geoacoustic Models for Unfrozen Water Content Estimation. Journal of Geophysical Research (JGR): Solid Earth
    Academic article
  • Ervik, Åse; Høyland, Knut Vilhelm; Grimstad, Gustav; Nord, Torodd Skjerve. (2017) A continuum model of large deformation continuous ductile ice crushing. Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions
    Academic article
  • Thakur, Vikas Kumar Singh; Nordal, Steinar; Grimstad, Gustav. (2006) Phenomenological issues related to strain localization in sensitive clays. Geotechnical and Geological Engineering
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Dadrasajirlou, Davood. (2025) Integration of hyperplastic models in strain space. Géotechnique
    Academic article
  • Sukuvara, Dan Sergei; Vaslestad, Jan; Scibilia, Elena; Baardvik, Gunvor; Grimstad, Gustav. (2024) A Critical Review of Methods for Backfill Soil Modulus in Design of Flexible Culverts. Transportation Research Record
    Academic article
  • Jostad, Hans Petter; Grimstad, Gustav; Andersen, Knut H; Saue, Morten; Shin, Yunsup; You, D. (2014) A FE Procedure for Foundation Design of Offshore Structures - Applied to Study a Potential OWT Monopile Foundation in the Korean Western Sea. Geotechnical Engineering
    Academic article
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) On the isotache viscous modelling of clay behaviour using the hyperplasticity approach. Géotechnique
    Academic article
  • Lyu, Chuangxin; Grimstad, Gustav; Nishimura, Satoshi. (2021) Pore pressure coefficient in frozen soils. Géotechnique
    Academic article
  • Long, Mike; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Trafford, Andrew; Degago, Samson Abate; Heureux, Jean-Sebastien L. (2022) Engineering properties of Norwegian peat for calculation of settlements. Engineering Geology
    Academic article
  • Rødvand, Laura Anne; Jostad, Hans Petter; Grimstad, Gustav; Andresen, Lars. (2022) Strain localisation in sensitive clays: can rate dependency provide mesh independent results?. Computers and geotechnics
    Academic article
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Degago, Samson Abate; Houlsby, G. T.. (2024) Modified cam clay bounding surface hyper-viscoplastic model. Géotechnique
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Kadivar, Mehdi. (2016) An elastic-viscoplastic model for saturated frozen soils. European Journal of Environmental and Civil Engineering (EJECE)
    Academic article
  • Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Aalberg, Arne; Shen, Yuanjie; Ingeman-Nielsen, Thomas. (2025) Modeling the degradation of Saline marine permafrost: the influence of soil freezing characteristics. Canadian geotechnical journal (Print)
    Academic article
  • Tistel, Joar; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2017) Testing and modeling of cyclically loaded rock anchors. Journal of Rock Mechanics and Geotechnical Engineering
    Academic article
  • Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav. (2012) Constitutive Model for Cemented Quick Clay in Deep-Mix Stabilization. Global Journal of Engineering Research
    Academic article
  • Tran, Quoc Anh; Sørlie, Erik Ravik; Grimstad, Gustav; Eiksund, Gudmund Reidar; Takahashi, Hidenori; Sassa, Shinji. (2024) Influence of sediment permeability in seismic-induced submarine landslide mechanism: CFD-MPM validation with centrifuge tests and analysis. Computers and geotechnics
    Academic article
  • Grimstad, Gustav; Degago, Samson Abate; Boumezerane, Djamalddine. (2015) Discussion of “Viscous behaviour of clays in one-dimensional compression”. Canadian geotechnical journal (Print)
    Academic article
  • Long, Michael; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Sponås, Egil Berg Antoniazzi; Bjertness, Endre; Ritter, Stefan. (2023) Behaviour of 60-year-old trial embankments on peat. Engineering Geology
    Academic article
  • Grimstad, Gustav; Andresen, Lars; Jostad, Hans Petter. (2012) NGI-ADP: Anisotropic shear strength model for clay. International journal for numerical and analytical methods in geomechanics (Print)
    Academic article
  • Tistel, Joar; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2020) A macro model for shallow foundations on granular soils describing non-linear foundation behavior. Computers & structures
    Academic article
  • Grimstad, Gustav; Degago, Samson Abate; Nordal, Steinar; Karstunen, Minna. (2010) Modeling creep and rate effects in structured anisotropic soft clays. Acta Geotechnica
    Academic article
  • Kjelstrup, Signe; Ghoreishian Amiri, Seyed Ali; Loranger, Benoit; Gao, Hao; Grimstad, Gustav. (2021) Transport coefficients and pressure conditions for growth of ice lens in frozen soil. Acta Geotechnica
    Academic article
  • Cai, Fang; Eiksund, Gudmund Reidar; Grimstad, Gustav; Jostad, Hans Petter. (2014) An anisotropic shear strength model for cyclic accumulated plastic strain of overconsolidated clay. Electronic Journal of Geotechnical Engineering
    Academic article
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Nordal, Steinar. (2023) A set of hyper-viscoplastic critical state models with different friction mobilisation criteria. International Journal of Solids and Structures
    Academic article
  • Grimstad, Gustav; Dadrasajirlou, Davood; Ghoreishian Amiri, Seyed Ali. (2020) Modelling creep in clay using the framework of hyper-viscoplasticity. Géotechnique Letters
    Academic article
  • Grimstad, Gustav; Long, Michael; Dadrasajirlou, Davood; Ghoreishian Amiri, Seyed Ali. (2021) Investigation of Development of the Earth Pressure Coefficient at Rest in Clay During Creep in the Framework of Hyper-Viscoplasticity. International Journal of Geomechanics
    Academic article
  • Grimstad, Gustav; Paniagua Lopez, Ana Priscilla; Weerdt, Klaartje De. (2020) På vegen mot karbonnegativ stabil grunn. Byggeindustrien
    Popular science article
  • Tran, Quoc Anh; Rogstad, Agnete; Depina, Ivan; Fernándes, Fabricio; Alene, Gebray Habtu; Grimstad, Gustav; Nordal, Steinar. (2024) 3D large deformation modeling of the 2020 Gjerdrum quick clay landslide. Canadian geotechnical journal (Print)
    Academic article
  • Long, Michael; Grimstad, Gustav; Trafford, Andrew. (2022) Prediction of embankment settlement on Swedish peat using the soft soil creep model. Proceedings of the Institution of Civil Engineers : Geotechnical Engineering
    Academic article
  • Skau, Kristoffer Skjolden; Grimstad, Gustav; Page, Ana M.; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2018) A macro-element for integrated time domain analyses representing bucket foundations for offshore wind turbines. Marine Structures
    Academic article
  • Grimstad, Gustav; Haji Ashrafi, Mohammad Ali; Kadivar, Mehdi. (2015) PROFILE: Creep of geomaterials. PAN european networks science and technology
    Popular science article
  • Grimstad, Gustav. (2015) Bjørvika synker. Byggeindustrien
    Popular science article
  • Tran, Quoc Anh; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) MPMICE: A hybrid MPM-CFD model for simulating coupled problems in porous media. Application to earthquake-induced submarine landslides. arXiv.org
    Academic article
  • Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Nordal, Steinar. (2019) Relations and links between soil mechanics, porous media physics, physiochemical theory, and effective medium theory. Frontiers in Physics
    Academic literature review
  • Page, Ana M.; Grimstad, Gustav; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2018) A macro-element pile foundation model for integrated analyses of monopile-based offshore wind turbines. Ocean Engineering
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Kadivar, Mehdi; Nordal, Steinar. (2016) Constitutive model for rate-independent behavior of saturated frozen soils. Canadian geotechnical journal (Print)
    Academic article
  • Rostami, Hooman; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2017) Back analysis of Caen’s test by the recently developed frozen/unfrozen soil. Plaxis Bulletin
    Popular science article
  • Grimstad, Gustav; Nordal, Steinar; Solberg, Inger-Lise; Ottesen, Hanne Bratlie. (2022) Om kvikkleire og skredet den 30. desember 2020 i Gjerdrum. Naturen
    Academic article
  • Aamodt, Magnus Træland; Grimstad, Gustav; Nordal, Steinar. (2021) Effect of Strength Anisotropy on the Stability of Natural Slopes. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Degago, Samson Abate; Grimstad, Gustav. (2015) Discussion of “Experimental investigation on the creep behavior of an unsaturated clay”. Canadian geotechnical journal (Print)
    Academic article
  • Grimstad, Gustav; Haji Ashrafi, Mohammad Ali; Degago, Samson Abate; Nordal, Steinar; Emdal, Arnfinn. (2016) Discussion of ‘Soil creep effects on ground lateral deformation and pore water pressure under embankments’. Geomechanics and Geoengineering
    Academic article
  • Degago, Samson Abate; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar; Olsson, Mats. (2011) Use and misuse of the isotache concept with respect to creep hypotheses A and B. Géotechnique
    Academic article
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Gao, Hao; Kjelstrup, Signe. (2021) Numerical modelling of distinct ice lenses in frost heave. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Grimstad, Gustav; Karstunen, Minna; Jostad, Hans Petter; Sivasithamparam, Nallathamby; Mehli, Magne; Zwanenburg, Cor; Evert, den Haan; Ghoreishian Amiri, Seyed Ali; Boumezerane, Djamalddine; Kadivar, Mehdi. (2017) Creep of geomaterials – some finding from the EU project CREEP. European Journal of Environmental and Civil Engineering (EJECE)
    Academic article
  • Attari, Yeganeh; Jostad, Hans Petter; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2023) Evaluation of Pile Driving Effects on Slope Stability in Clay. Geotechnical and Geological Engineering
    Academic article

Part of book/report

  • Grimstad, Gustav; Mehli, Magne; Degago, Samson Abate. (2015) Creep in Clay During the First Few Years After Construction.
    Academic chapter
  • Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2015) A Thermo-Hydro-Mechanical Constitutive Model for Saturated Frozen Soil.
    Academic chapter
  • Degago, Samson Abate; Grimstad, Gustav. (2013) Evaluation of creep hypotheses A and B based on relevant laboratory tests.
    Academic chapter
  • Degago, Samson Abate; Jostad, Hans Petter; Olsson, Mats; Grimstad, Gustav; Nordal, Steinar. (2010) Time- and stress-compressibility of clays during primary consolidation.
    Academic chapter
  • Grimstad, Gustav; Degago, Samson Abate. (2010) A non-associated creep model for structured anisotropic clay (n-SAC).
    Academic chapter
  • Grimstad, Gustav; Mehli, Magne; Degago, Samson Abate. (2015) Is creep analysis creeping into practice?.
    Academic chapter
  • Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2015) A new concept in developing a constitutive model for frozen soils.
    Academic chapter
  • Boumezerane, Djamalddine; Grimstad, Gustav; Makdisi, Andrew. (2015) A framework for peat behaviour based on hyperplasticity principles.
    Academic chapter
  • Rønningen, Jon A.; Grimstad, Gustav; Nordal, Steinar. (2016) Modelling soft Scandinavian clay behavior using the asymptotic state.
    Academic chapter
  • Degago, Samson; Grimstad, Gustav. (2014) Significance of sample quality in settlement analysis of field cases.
    Academic chapter
  • Haji Ashrafi, Mohammad Ali; Grimstad, Gustav. (2015) Implementation of a critical state soft soil creep model with shear stiffness.
    Academic chapter
  • Grimstad, Gustav; Rønningen, Jon A.; Nøst, Hilde Aas. (2014) Use of IWAN models for modelling anisotropic and cyclic behavior of clays.
    Academic chapter
  • Hoogstraten, Sara C. van; Hermans, Sebastiaan J.; Versteijlen, Willem G.; Page, Ana M.; Grimstad, Gustav; Pisanò, Federico; Metrikine, Andrei V.. (2020) The Macro-Element Method for Offshore Wind Turbines Exposed to Extreme Loads in the Asia-Pacific Region.
    Academic chapter
  • Tistel, Joar; Grimstad, Gustav. (2016) A macro model description of the non-linear anchor block foundation behavior.
    Academic chapter
  • Emdal, Arnfinn; Priol, Gregoire; Grimstad, Gustav; Lohren, A.H.. (2007) Numerical analysis of the effect of sleepers on the lateral displacement of railway track.
    Academic chapter
  • Rødvand, Laura Anne; Andresen, Lars; Grimstad, Gustav. (2019) Case study of a road bridge hit by a landslide in highly sensitive clay.
    Non-fiction chapter
  • Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Gao, Hao; Ingeman-Nielsen, Thomas; Grimstad, Gustav. (2019) Joint Acoustic and Electrical Measurements for Unfrozen Water Saturation Estimate—A Review.
    Academic chapter
  • Grimstad, Gustav; Jostad, Hans Petter. (2011) Effekt av progressive brudd i sensitive leirer.
    Academic chapter
  • Andresen, Lars; Saygili, Gökhan; Grimstad, Gustav. (2011) Finite element analysis of the Saint-Alban embankment failure with an anisotropic undrained strength model.
    Academic chapter
  • Grimstad, Gustav; Mehli, Magne; Jostad, Hans Petter. (2014) Forskningstemaet: krypoppførsel av geomaterialer og innlemmelse i geoteknisk prosjektering.Hvordan best utføre krypmodellering?.
    Academic chapter
  • Jostad, Hans Petter; Grimstad, Gustav; Andersen, Knut H; Sivasithamparam, Nallathamby. (2015) A FE procedure for calculation of cyclic behaviour of offshore foundations under partly drained conditions.
    Academic chapter
  • Rønningen, Jon A.; Gavel-Solberg, Vegard; Grimstad, Gustav. (2014) Effective stress model for soft Scandinavian clays.
    Academic chapter
  • Boumezerane, Djamalddine; Grimstad, Gustav. (2015) A Rheological Model for Peat That Accounts for Creep.
    Academic chapter
  • Grimstad, Gustav; Degago, Samson Abate; Nordal, Steinar; Karstunen, Minna. (2008) Modelling creep and rate effects using the time resistance concept in a model for anisotropy and destructuration.
    Academic chapter
  • Grimstad, Gustav; Bujulu, Pancras Mugishagwe Syldion; Nordal, Steinar. (2008) A generalized constitutive model for stabilized quick clay.
    Academic chapter
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2017) Constitutive Model for Long-Term Behavior of Saturated Frozen Soil.
    Academic chapter
  • Degago, Samson; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2013) Misconceptions about experimental substantion of creep hypotheis A.
    Academic chapter
  • Grimstad, Gustav; Rønningen, Jon Abusland; Nordal, Steinar. (2018) Application of a generalized continuous Mohr–Coulomb criterion.
    Academic chapter
  • Rønningen, Jon Abusland; Grimstad, Gustav; Nordal, Steinar. (2018) On the convexity of yield and potential surfaces in rotational hardening critical state models.
    Academic chapter
  • Nordal, Steinar; Grimstad, Gustav; Jordbakke, Tormod; Rabstad, Kristoffer; Isachsen, Marit. (2018) On modelling of anisotropic undrained strength for non-horizontal terrain.
    Academic chapter
  • Bjerre, Jesper; Rønningen, Jon Abusland; Grimstad, Gustav; Nordal, Steinar. (2018) Effective Stress based Model for Natural Soft Clays incorporating Restructuration.
    Academic chapter
  • Degago, Samson Abate; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2009) The non-uniqueness of the end-of-primary (EOP) void ratio-effective stress relationship.
    Academic chapter
  • Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav; Nordal, Steinar; Grande, Lars Olav. (2008) An experimentally-based constitutive model for deep-mix stabilized quick clay.
    Academic chapter
  • Grimstad, Gustav; Thakur, Vikas Kumar Singh; Nordal, Steinar. (2005) Experimental observation on formation and propagation of shear zone in Norwegian quick clay.
    Academic chapter
  • Skau, Kristoffer Skjolden; Andresen, Lars; Jostad, Hans Petter; Fornes, Petter; Grimstad, Gustav; Page, Ana. (2013) Stability and deformations of Zelazny Most dam - One of the world's largest deponies for copper tailings.
    Academic chapter
  • Grimstad, Gustav; Nordal, Steinar; Athanasiu, Corneliu. (2006) A constitutive model for undrained anisotropic behaviour of clays.
    Academic chapter
  • Jostad, Hans Petter; Grimstad, Gustav. (2011) Comparison of distribution functions for the non-local strain approach.
    Academic chapter
  • Grimstad, Gustav; Jostad, Hans Petter. (2012) Stability analyses of quick clay using FEM and an anisotropic strain softening model with internal length scale.
    Academic chapter
  • Degago, Samson; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2013) Misconceptions about experimental substantiation of creep hypothesis A.
    Academic chapter
  • Cicchetti, Lorenzo; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Ingeman-Nielsen, Thomas. (2018) Thermo-Hydro-Mechanical simulations of Artificial Ground Freezing.
    Academic chapter
  • Grimstad, Gustav; Melhus, Ole; Degago, Samson Abate; Ebeltoft, Roger Guldvik. (2013) Modeling of rock fall impact using discrete element method (DEM.
    Academic chapter
  • Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Watn, Arnstein; Hoff, Inge. (2018) Frost protection in roads using insulation materials.
    Academic chapter
  • Bonadies, F.; Nordal, Steinar; Gylland, Anders Samstad; Grimstad, Gustav; Jostad, Hans Petter; Cuomo, S.; Cascini, L.. (2014) Numerical methods for simulation of downward progressive landslides.
    Academic chapter
  • Degago, Samson Abate; Nordal, Steinar; Grimstad, Gustav; Jostad, Hans Petter. (2011) Analyses of Väsby test fill according to creep hypothesis A and B.
    Academic chapter

Report

  • Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2016) Enhanced permafrost creep model– user manual and documentation. PIAG_GA_2011‐286397‐R6
    Research report
  • Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Lubbad, Raed Khalil. (2022) Report on calibrated and validated numerical models to estimate site specific stability of coastal infrastructure in a changing climate with thawing permafrost. NUNATARYUK project
    Research report
  • Grimstad, Gustav; Rønningen, Jon A.; Benz, Thomas; Jostad, Hans Petter; Haan, Evert Den; Qi, Jilin. (2013) User manual for the creep database. NTNU
    Research report
  • Fornes, Petter; Grimstad, Gustav; Jostad, Hans Petter. (2014) Effekt av progressiv bruddutvikling for utbygging i områder med kvikkleire : tilbakeregning av Vestfossenskredet. Norges vassdrags- og energidirektorat
    Other type of report
  • Grimstad, Gustav; Jostad, Hans Petter. (2014) Effekt av progressiv bruddutvikling for utbygging i områder med kvikkleire: numerisk metode for beregning av udrenert brudd i sensitive materialer. Norges vassdrags- og energidirektorat
    Other type of report

Student thesis or dissertation

  • Torgersrud, Øyvind; Mohus, Oda; Eikebrokk, Anna; Grimstad, Gustav. (2021) Simulations of Characteristic Sand Behavior by DEM. Norges teknisk-naturvitenskapelige universitet
    Master thesis
  • Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) Hyper-Viscoplastic Modelling of Clay Behaviour. Norges teknisk-naturvitenskapelige universitet
    Doctoral thesis
  • Grimstad, Gustav. (2009) Development of effective stress based anisotropic models for soft clays. Norges teknisk-naturvitenskapelige universitet
    Doctoral thesis

Teaching

Courses

  • BA8304 - Soil Modelling
  • TBA4116 - Geotechnical Engineering, Advanced Course
  • BA6064 - Geotechnical calculation methods
  • TBM4241 - Numerical and Analytical Methods in Geotechnics
  • BA6063 - Geotechnics - Introduction
  • TBM4342 - Geotechnical Engineering 2
  • TBM4540 - Geotechnics and Geohazards, Specialization Project
  • TBM4541 - Geotechnics and Geohazards, Specialization Project

Outreach

2024

  • Conference lecture
    Grimstad, Gustav; Watn, Arnstein; Degago, Samson Abate; Dadrasajirlou, Davood; Haugen, Ellen Davis; Dolva, Bjørn Kristoffer; Brattlien, Kjetil; Strand, Stein-Are. (2024) FORSKNINGSPROJEKT SAUNA - STABILITET AV NATURLIGE SKRÅNINGER I KVIKKLEIRE - CASE TOFTE, HALSNØY. Geoteknikkdagen 2024
  • Conference lecture
    Grimstad, Gustav; Degago, Samson Abate; Dadrasajirlou, Davood; Watn, Arnstein; Haugen, Ellen Davis; Brattlien, Kjetil; Dolva, Bjørn Kristoffer. (2024) STABILITY OF NATURAL SLOPES - ROBUSTNESS AND SAFETY. 19th Nordic Geotechnical Meeting

2023

  • Feature article
    Hov, Sølve; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Pan, Yutao. (2023) Kan forsterkning av bløt grunn bli bærekraftig?.
  • Conference lecture
    Ghoreishian Amiri, Seyed Ali; Dadrasajirlou, Davood; Grimstad, Gustav. (2023) Direct integration method for hyperplastic models. 10th European Conference on Numerical Methods in Geotechnical Engineering
  • Feature article
    Hov, Sølve; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Pan, Yutao. (2023) Kan forsterkning av bløt grunn bli bærekraftig?.

2022

  • Conference lecture
    Tran, Quoc Anh; Rogstad, Agnete; Grimstad, Gustav; Nordal, Steinar; Alene, Gebray Habtu. (2022) Preliminary study of 3D large deformation modeling of the Gjerdrum 2020 sensitive clay landslide. the 8th Canadian Conference on Geotechnique and Natural HazardsAt: Quebec, Canada
  • Conference lecture
    Tran, Quoc Anh; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) Coupled CFD-MPM simulation of soil-fluid interaction in geotechnics. Presentations and videos to 7th edition of the International Conference on Particle Meothds

2021

  • Conference lecture
    Aamodt, Magnus T; Grimstad, Gustav; Nordal, Steinar. (2021) Effect of Strength Anisotropy on the Stability of Natural Slopes. 18th Nordic Geotechnical Meeting 18-19 January 2021, Helsinki, Finland
  • Conference lecture
    Torgersrud, Øyvind; Mohus, Oda; Eikebrokk, Anna; Grimstad, Gustav; Jostad, Hans Petter. (2021) Critical state line from level set discrete element method. Tailings and Mine Waste 2021

2020

  • Lecture
    Lyu, Chuangxin; Ingeman-Nielsen, Thomas; Ghoreishian Amiri, Seyed Ali; Eiksund, Gudmund Reidar; Grimstad, Gustav. (2020) Joint Acoustic and Electrical Measurements for Unfrozen Water Saturation of Frozen Saline Soil. EGU General Assembly 2020
  • Lecture
    Kjelstrup, Signe; Ghoreishian Amiri, Seyed Ali; Gao, Hao; Grimstad, Gustav; Loranger, Benoit. (2020) Dynamic of ice lens formation in frozen soil. InterPore 2020

2019

  • Lecture
    Ghoreishian Amiri, Seyed Ali; Gao, Hao; Grimstad, Gustav; Kjelstrup, Signe. (2019) A discontinuous approach for modelling distinct ice lenses in frost heave phenomenon. Int. Workshop on Non-Equilibrium Thermodynamics in Porous Media
  • Conference lecture
    Degago, Samson Abate; Grimstad, Gustav. (2019) Potential application of satellite data in evaluation of field creep calculation. 19th International Conference on Soil Mechanics and Geotechnical Engineering

2018

  • Lecture
    Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2018) Computational Model for Freezing and Thawing Processes in Fully Saturated Soils. China – Europe Conference on Geotechnical Engineering
  • Lecture
    Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Nordal, Steinar. (2018) Porous media in a geotechnical context: constitutive modeling and effective stress measure. 2nd National Interpore Workshop
  • Conference lecture
    Grimstad, Gustav. (2018) On the constitutive modelling of clay soils. 3. Deutsche Bodenmechanik Tagung 2018

2017

  • Lecture
    Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2017) Coupled THM constitutive model for porous materials under frost action: Application to frost heave simulation. 9th International Conference on Porous Media & Annual Meeting (InterPore 2017)

2016

  • Conference poster
    Kadivar, Mehdi; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Jostad, Hans Petter; Birkeland, Ellen. (2016) Study of frost susceptibility of normally consolidated clay using NGI frost heave cell. XI. International Conference on Permafrost
  • Conference lecture
    Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2016) Constitutive modeling of frozen soils. Norwegian chapter InterPore Kick-off Workshop
  • Conference poster
    Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2016) Elastic-ViscoPlastic Model for Saturated Frozen Soils. Alert Workshop
  • Conference poster
    Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2016) Elastic-ViscoPlastic Model for Saturated Frozen Soils. Norwegian chapter InterPore Kick-off Workshop
  • Conference lecture
    Degago, Samson Abate; Grimstad, Gustav. (2016) Evaluation of soil parameters for creep calculations of field cases. The 17th Nordic Geotechnical Meeting

2015

  • Conference lecture
    Grimstad, Gustav. (2015) Parameter selection for creep models. CREEP workshop

2014

  • Conference lecture
    Grimstad, Gustav. (2014) GFT: CREEP of Geomatrials. GFT Årsmøte
  • Lecture
    Grimstad, Gustav; Ashrafi, Mohammad Ali Haji. (2014) Back calculation of embankments with OCR determined from prediction of initial strain rate rather than from OCR determined from disturbed samples in oedometer tests under unknown (different than the in-situ) stress condition, with a simple creep model. CREBS IV

2012

  • Conference lecture
    Grimstad, Gustav. (2012) Stability analyses of quick clay using FEM and an anisotropic strain softening model with internal length scale. 3rd GEO-INSTALL workshop
  • Conference lecture
    Grimstad, Gustav; Degago, Samson. (2012) Modeling of soft clay with focus on anisotropy and creep. Yngres dag
  • Conference lecture
    Degago, Samson; Grimstad, Gustav. (2012) Implication of sample quality in settlement analysis of field cases. Indian Geotechnical Conference (IGC)

2011

  • Conference lecture
    Grimstad, Gustav. (2011) NGI-ADP Anisotropic undrained shear strength model. PDC meeting, 2011
  • Conference lecture
    Grimstad, Gustav. (2011) A non-associated creep model for structured anisotropic clay (n-SAC). 2nd GEO-INSTALL workshop

2010

  • Conference lecture
    Grimstad, Gustav; Jostad, Hans Petter; Andresen, Lars. (2010) Undrained capacity analyses of sensitive clays using the non-local strain approach. 9th HSTAM International Congress on Mechanics, VARDOULAKIS MINI-SYMPOSIA

2007

  • Conference lecture
    Grimstad, Gustav. (2007) STUDY OF THE FRICTION SLEEPER PERFORMANCE USING 3D FEM. 14th European PLAXIS users meeting

2006

  • Conference poster
    Thakur, Vikas Kumar Singh; Grimstad, Gustav; Nordal, Steinar. (2006) Instability in soft sensitive clays. 2006 ECI Conference on Geohazards

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