ABSTRACT
A geotechnical model was proposed to do three dimensional simulation of landslide motion. Coulomb’s law was used to express the cohesion, friction angle and other geotechnical parameters along the slip surface. A formula on the relationship between static friction angles and dynamic friction angle was proposed on the basis of three dimensional simulations of worldwide landslides. Landslide body is divided to grid of right angle as basic calculation cell. The average numerical values of every element are put in the gravity center of each grid. The geography data of ground and sliding surface can be obtained from Geographical System Information data or other investigation. The static friction angle can be obtained by two dimensional slice methods or soil experiments. A formula on the relationship between static friction angle and dynamic friction angle is proposed, based on three-dimensional simulation of worldwide landslides.
