Geomechanical modeling of a fault-propagation fold

Geomechanical modeling of a fault-propagation fold

Doff, J.M.

Bertotti, G. (mentor)
Bisdom, K. (mentor)

Civil Engineering and Geosciences

Geoscience & Engineering

Applied Geology

2015-06-12

The goals of this thesis were to understand the impact of uncertainties and modeling methods on the resulting stress and strain patterns and to see how 3D stress patterns can be linked to what was seen in the field. In 3 types of models simulations were done to carry out this goal. These are the 2D perturbation model, the 2D static model, and the 3D model. Sensitivity analysis was performed on all of the models and in the 3D model also a principal stress analysis was done. Results and discussion showed us that the displacement and Young’s modulus parameters were the most influential of the parameters that were analysed. Also principal stress analysis tells us that in no location in the model 3D stress patterns can be linked to what was seen in the fold. The model in the current state is probably not advanced enough and maybe the model needs to be revised with perhaps an extra fault going through it. It was concluded that the model is in some ways correct, in some ways it isn’t. More research is needed to make a more accurate model which will produce more accurate stress and strain patterns.

modelling

http://resolver.tudelft.nl/uuid:94dad8e7-eda8-45af-8cce-8796650d7ad5

Student theses

bachelor thesis

(c) 2015 Doff, J.M.