Generation of In-situ Stresses for Analysis of Progressive Failure Mechanism in a Sensitive Clay Slope
Andries Kirstein, Ariane Locat, Hans Petter Jostad, Gustav Grimstad
In the proceedings of: GeoSaskatoon 2023: 76th Canadian Geotechnical ConferenceSession: Geohazards 2
ABSTRACT: The in-situ stress situation in a sensitive clay slope plays an important role in determining whether the slope will remain stable following a disturbance (such as toe erosion, earthquake, etc.). The paper compares the in-situ stress state calculated using two soil models available in Plaxis 2D. These analyses are part of a larger project to understand the mechanism of the initiation of spreads that is conducted using the UDSM “NGI-ADPsoft” in Plaxis. It is numerically convenient to generate in-situ stresses using NGI-ADP as stress is guaranteed to be limited by the failure criterion of NGI-ADPSoft. However, since NGI-ADP is a total stress model, the paper investigates the validity of using NGI-ADP to generate in-situ stresses resulting from valley erosion in the drained condition, as compared to Hardening Soil Model. It is concluded that it is reasonable to use NGI-ADP to generate in-situ stresses for the case study considered.
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Kirstein, Andries, Locat, Ariane, Jostad, Hans Petter, Grimstad, Gustav (2023) Generation of In-situ Stresses for Analysis of Progressive Failure Mechanism in a Sensitive Clay Slope in GEO2023. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Kirstein_GEO2023_40,
author = {{Kirstein, Andries}, {Locat, Ariane}, {Jostad, Hans Petter}, {Grimstad, Gustav}}
title = {Generation of In-situ Stresses for Analysis of Progressive Failure Mechanism in a Sensitive Clay Slope }
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Generation of In-situ Stresses for Analysis of Progressive Failure Mechanism in a Sensitive Clay Slope }
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }