Real-time Monitoring of Soil Water Content and Suction within a Slow Moving Landslide
K Sattler, D Elwood, MT Hendry, R Macciotta, D Huntley, PT Bobrowsky, PI Meldrum
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: Landslides and Geohazards I (Translational Landslides)
ABSTRACT: Loss of matric suction in the head scarp has the potential to trigger increased movement in metastable landslides. Measurements taken from in-place dielectric permittivity sensors installed in the head scarp and within the slide mass are analyzed based on temporal trends combined with weather station and displacement monitoring data. Fluctuations in the groundwater table due to changes in the river stage are considered in conjunction with changes in near surface matric suction. Determination of water content in the vadose zone is further correlated with the application of electrical resistivity tomography (ERT) to provide redundancy and develop a representative in-situ soil water characteristic curve for an active landslide. The research site, known as the Ripley Slide, is located about 8 kilometers south of Ashcroft, British Columbia and impacts this major railway corridor for both CP and CN along one of the busiest transportation routes in North America.
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Sattler, K, Elwood, D, Hendry, MT, Macciotta, R, Huntley, D, Bobrowsky, PT, Meldrum, PI (2018) Real-time Monitoring of Soil Water Content and Suction within a Slow Moving Landslide in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Sattler_GEO2018_240,
author = {{Sattler, K}, {Elwood, D}, {Hendry, MT}, {Macciotta, R}, {Huntley, D}, {Bobrowsky, PT}, {Meldrum, PI}}
title = {Real-time Monitoring of Soil Water Content and Suction within a Slow Moving Landslide }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Real-time Monitoring of Soil Water Content and Suction within a Slow Moving Landslide }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }