Loading Efficiency and Stiffness of the Lea Park Formation at Borden Bridge
JN Antunes, K Sattler, D Elwood, MT Hendry
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: In-Situ Testing
ABSTRACT: The research demonstrates the effect of temporal changes in subsurface pore pressures at the Borden Bridge landslide which are shown to impact the landslide’s rate of movement. A historical perspective of the area shows the failure is being driven along a weakened layer of residual clay shale roughly 40 m below surface. Changing pore pressure dynamics due to seasonal fluctuations influence the modulus and shear strength of the residual clay shale. These changes have the potential to affect the stability and contribute to delayed failure mechanisms for the landslide. Several vibrating wire piezometers and a barologger were recently installed on site. Using the collected dataset, the deformation modulus can be interpreted within the Lea Park Shale. The data presented in this paper includes the stiffness of the residual shale formation below the groundwater level based on historic laboratory results and from in-situ methods.
Submit a Data Update Form for this paper
Please include this code when submitting a data update via other methods: GEO2018_400
Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.
Cite this article:
Antunes, JN, Sattler, K, Elwood, D, Hendry, MT (2018) Loading Efficiency and Stiffness of the Lea Park Formation at Borden Bridge in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Antunes_GEO2018_400,
author = {{Antunes, JN}, {Sattler, K}, {Elwood, D}, {Hendry, MT}}
title = {Loading Efficiency and Stiffness of the Lea Park Formation at Borden Bridge}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Loading Efficiency and Stiffness of the Lea Park Formation at Borden Bridge}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }