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Changes in the hydrological conditions within slopes often drive slope failures, especially for rainfall-induced landslides. Since geoelectrical measurements are sensitive to variations in soil moisture, and can track them in space and time, ERT monitoring is frequently applied to better understand landslide dynamics, enabling effective mitigation measures.
Changes in the hydrological conditions within slopes often drive slope failures, especially for rainfall-induced landslides. Since geoelectrical measurements are sensitive to variations in soil moisture, and can track them in space and time, ERT monitoring is frequently applied to better understand landslide dynamics, enabling effective mitigation measures.
HollinHill.mp4Understanding the drivers of slope failures
Understanding the drivers of slope failures
In recent years, geoelectrical monitoring has been established as a standard technique for monitoring the hydraulic precursors for slope failure, and automated monitoring setups are being to mitigate landslide risk, e.g., for railway infrastructure.
The video shows monitoring from a test site in Northern England, which is a research site managed by the British Geological Survey, and shows moisture build-up prior to failure in Dezember 2012. More information on this site and the monitoring setup can be found in here.
Geoelectrical monitoring for landslide early warning
Geoelectrical monitoring for landslide early warning
In 2017 and 2018, the British Geological Survey together with Amrita University installed a resistivity monitoring system at the Munnar Landslide Observatory. Geoelectrical, geotechnical, and hydrological monitoring data are used since then for landslide early warning for the city of Munnar, India. The photos show some impressions from the installation of the monitoring setup.
The results are presented here.
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