STUDY ON DISTRIBUTION AND CALCULATION OF THRUST ON STABILIZING PILE OF THE MULTI-SLIDING ZONES LANDSLIDE

The evolution process of landslides with multi-sliding zones is characterized by the relative motion of multi-layer and stress discontinuities. Due to the mutual dislocation and pile-soil interaction between sliding bodies in different layers,the thrust distribution of the multi-sliding zones landslide is often complex. It is urgent to put forward the calculation method for the thrust distribution on stabilizing pile of multi-sliding zones landslide. In this paper,the horizontal limit equilibrium method is used to analyze the multi-sliding zones landslide. According to the stress analysis under the limit equilibrium state of horizontal micro segment,the landslide thrust on stabilizing pile in each layer is obtained. When analyzing the force balance in the vertical direction,it is necessary to consider the downward force transmission of sliding mass in different layers,resulting in the sudden change of landslide thrust distribution function at the sliding zone. The thrust distribution function on stabilizing pile of multi-sliding zones landslide is derived and verified by numerical simulation,which means that the function is reliable. The thrust calculation method of multi-sliding zones landslide is proposed in this paper,which provides a certain idea for the treatment of multi-sliding zones landslide.