基坑内摩阻力的侧压力计算方法

A Practical Calculating Method of Infilled Lateral Pressure about Friction Force in Rock Pit

对于岩石基坑内的地下室外墙计算,现行的方法不考虑基坑内填土与地下室外墙及填土与岩石表面之间的摩阻力,计算出的侧压力偏大,与实际工程情况不符,笔者给出了与实际情况较吻合的计算方法及设计图表,可供设计人员参考.

The friction force between soil cushion and outer wall of basement, soil cushion and the face of rack,is not considered in the present method about the lateral pressure of a outer wall of basement in rock pit. The calculating result is too much to agree with the practical condition of a project. A calculating formula and designed charts about the lateral pressure of outer wall of basement in rock pit are hereby presented and the lateral friction force has been considered,which can be used to calculate lateral pressure.