关键词: 岩土力学, 边坡设计, 花岗岩, 极限平衡法, 有限元强度折减法, 边坡安全系数

Abstract:

Based on the high slope engineering of Guangzhou Skeet & Trapshooting Training Centre, some of the key technique problems of the high slope designing are discussed; and the reinforced design of the high slope is introduced. It is assumed on the same physical model and boundary conditions , the different limit equilibrium methods(LEM) are adopted to analyze the stability of the high slope; and the different results involves different methods are analyzed and the reasons are discussed. Lastly, the finite element method (FEM) based on shear strength reduction technique are adopted; and the unreinforced slope and the reinforced slope are concerned and calculated. It is pointed out that the deformation characteristics and failure mechanism calculated by FEM are different from that’s from LEM because of its principles and assumption.

Key words: rock and soil mechanics, slope design, granite, limit equilibrium method, FEM shear strength reduction technique, safety factor of slope