TBA5150 - Geohazards and Risk


Examination arrangement

Examination arrangement: Aggregate score
Grade: Letter grades

Evaluation Weighting Duration Grade deviation Examination aids
Semester test 24/100 2 hours C
Work 30/100
School exam 46/100 4 hours C

Course content

The course will include:

  1. terminology used in risk assessment
  2. a brief insight into various geohazards landslide types, debris flow, rock fall
  3. identification of sources and types of uncertainties in problems related to geohazards
  4. discussion of the potential benefits of a probabilistic compared to a deterministic approach
  5. review relevant statistical and probabilistic theories needed to develop the methodologies and to interpret the results of the probabilistic analyses
  6. Application of probabilistic analysis as applied to geotechnical analysis, such as First Order Second Moment (FOSM) method and the First Order Reliability Method (FORM), event tree and logic tree construction, reliability of "systems"
  7. methods for prevention and mitigation of geohazards
  8. discussion on risk reduction strategies e.g., F-N diagram
  9. spatial variability and its impact

Learning outcome


This course is about dealing with uncertainty: Its better to be probably right than exactly wrong! The candidate should have knowledge of:

  • How to characterize and model uncertainties in geotechnical parameters (soils and rocks), quantify variability in soil profiles, loading and resistance factors as well as the calculation methods
  • Describing and formulating a geotechnical problem using a reliability approach
  • Incorporating uncertainties in conventional geotechnical analyses
  • Performing hazards related to slope or foundation failures, avalanches and earthquakes
  • Considering risk acceptance/tolerance criteria
  • Considering risk management and reduction measures (reliability based decision-making and mitigation).


The candidate can:

  • Identify sources of uncertainties in a given geotechnical problem, define relevant and critical failure modes or unwanted events
  • Assess probability of occurrence
  • Plan and perform reliability/risk analyses
  • Calculate/predict consequences
  • Make decisions based on reliability analyses
  • Recommend actions for risk reduction and/or risk mitigation.

General competence

The candidate can:

  • Make sound engineering judgments with a special focus on numerical simulations in geomechanics
  • Develop sustainable solutions for our built environment
  • Compose clear presentation
  • Work in teams.

Learning methods and activities

Lecture, term project, assignments.

Compulsory assignments

  • Assignments

Further on evaluation

If there is a re-sit examination, the examination form may be changed from written to oral. For a re-take of an examination, all assessments during the course must be re-taken. The parts of the assessment is given a letter grade. A failing grade on a part of the assessment can be included in the final grade.

Course materials

Lecture notes presented by the geotechnical division.

More on the course



Version: 1
Credits:  7.5 SP
Study level: Second degree level


Term no.: 1
Teaching semester:  AUTUMN 2023

Language of instruction: English

Location: Trondheim

Subject area(s)
  • Structural Engineering
  • Geotechnical Engineering
  • Geology
  • Technological subjects
Contact information
Course coordinator: Lecturer(s):

Department with academic responsibility
Department of Civil and Environmental Engineering


Examination arrangement: Aggregate score

Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
Autumn ORD School exam 46/100 C 2023-12-18 15:00 INSPERA
Room Building Number of candidates
SL238 Sluppenvegen 14 1
SL310 blå sone Sluppenvegen 14 21
Autumn ORD Semester test 24/100 C 2023-10-13 13:00 INSPERA
Room Building Number of candidates
SL310 hvit sone Sluppenvegen 14 28
SL310 Sluppenvegen 14 31
SL228 Sluppenvegen 14 2
Autumn ORD Work 30/100





Room Building Number of candidates
Summer UTS School exam 46/100 C INSPERA
Room Building Number of candidates
  • * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.

For more information regarding registration for examination and examination procedures, see "Innsida - Exams"

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