In order to understand the fundamental mechanism of cut-induced landslides in colluvial slope and to clarify some important characteristics of slope,in-situ cut tests a.

Based on interpretation of the monitoring data of actual displacement which resulted from the landslides in Xintan,it is shown that the stability of whole homogeneous colluvial slope is closely correlated with two parameters,velocity of surface displacement and angle of surface vector.

Ecological protection of spoil ground accumulation slope in expressway construction;

The problem of deposits slope is often encountered in constructions of hydropower projects in Southwest China.

Application of loading/unloading response ratio theory to prediction of accumulative landslide;

On the basis of the analysis on various factors that influence the high slope stability,the deformation failure mode of the slope is a middle-shallow accumulative landslide which is composed of soil and rock.

In order to improve our understanding of the fundamental mechanism of accumulation landslide induced by rainfall infiltration and to clarify some important slope characteristics varing with time lapse,the artificial rainfall simulation tests and the field synthetic monitored method are carried out in a typical accumulation slope in the section K85+650～690 of Shanghai-Ruili Expressway of China.

To counter the motion deformation characteristicscs of accumulation landslide.