ABSTRACT
Loess landslide disasters are widely distributed in loess area in China. Four kinds of basic types can be divided which are homogeneous loess landslide, loess interface landslide, loess-mudstone layer plane landslide and loess-mudstone cutting layer landslide. The rock-soil is not only the material base of a landslide developing, but also the problem should be identify firstly in research and prevention of the landslide. The sliding velocity, sliding distance and other characteristics of loess landslide are very important significance in the landslide disaster prediction, prevention and control. Loess-mudstone cutting layer landslide develops in the slope areas where the underlying stratum inclination is opposite to the direction of the slope, with steeper slope and greater sliding potential energy. The loess-mudstone cutting layer landslide has the characters of high-speed and long-distance, the stability of the sliding body is usually high after the sliding potential energy was released basically, but high-steep scarp is instability, may slide once again.
