Controls on the dimensions of landslides in sensitive clays

Abstract

The dimensions of landslides are subject to geometric, material and external controls. Geometric controls include: slopes and orientation of the ground surface and bedding planes, valley width and geometry, depth of failure, plus the presence and incision depth of bounding streams. Material controls include undrained and remoulded shear strength, sensitivity, stability number, remoulding index, rapidity, and the mobility of the depleted mass. Dense networks of trees can influence mobility. The position of layers prone to landsliding in the slope is important.