ABSTRACT
Rainfall is the main factor leading to slope instability and shallow landslide. Based on the finite element software MIDAS GTS NX, this paper uses the finite element strength reduction method to analyze in detail the slope stability of the landslide of Zhangjiakou-Chongli Zhangcheng high-speed Dahualang tunnel on the highway from Zhangjiakou to Chongli under the condition of rainstorm. The soil material parameters are determined according to the investigation report and empirical values. Through the modeling and calculation of the typical profile of the landslide, the cloud diagram and safety factor are analyzed, and the slope support scheme is designed and determined. It is concluded that with the excavation, the smaller the axial force, the greater the shear force and the greater the bending moment of anti-slide pile support.
