Cause Analysis and Treatment Measures of Deep Cutting Bedding Landslide
Landslide occurs after the deep cutting bedding slope in a highway is excavated to the design elevation.The causes of landslide are analyzed and the measures of strengthening and controlling are put forward by means of field investigation,survey,laboratory test,detection and monitoring,etc.The results show that the main factors of landslide are the development of rock joint and fracture,earthquake damage,rainfall infiltration and groundwater influence,and insufficient anchoring length of anchor cable.The landslide is basically stable under natural condition and earthquake condition,and understable under rainstorm condition.The landslide thrust is calculated according to the limit equilibrium method,and the comprehensive treatment measures of anchor cable anti-slide pile+cushion pier anchor cable+drainage are adopted.The landslide is in a stable state after treatment.