Determination of Water Flow at the Base of a Large Landslide by Resistivity Methods

Large Engineering works caused a 1.5 -m3- landslide on a valley slope. The material consist of coluvium: sand, silty sand overlying folded carbonifeous mudstones and sandstones. The slip plane underlies the coluvium where a clayey bed derived from the weathering of the basement favoured the landslide. The major movements are produced after raining periods. The objective is to figure out the slip plane location and the main water flow areas.