机构地区: 南阳理工学院
出 处: 《西安公路学院学报》 1994年第1期6-13,共8页
摘 要: 本文从竖井的受力特点出发,推导出了散体空间轴对称问题的极限平衡条件,得出1组滑移线方程。并借助有限差分法求解竖井周围的滑移线场,分析了竖井地压的作用与变化规律。 ased on the force charcateristics acting on the shaft, we deduce the stress conditions at the state of limit equilibrium of the spatial axial symmetry problems in a soil mass (c=0),and get a group of slip line equations. With the aid of the method of finite differences, we get the slip line field around a shaft, and analysed the law of the development of shaft-earth-pressure.