重力式水泥土挡墙基坑支护设计中几个问题的探讨

Disussion on Several Issues in the Pit Bracing Design of Gravity Cement Soil Retaining Wall

抗倾覆设计、抗滑移设计、挡墙底部土体承载力验算及土压力计算中c、 φ值的选用等几个问题 ,是重力式水泥土挡墙支护设计中的重要内容。目前 ,在不同的基坑规范或规程中 ,对这些内容的计算存在差异 ,对工程设计影响较大。本文在分析有关基坑支护规范和规程的基础上 ,结合工程实例 ,探讨了上述问题 。

The follwing several issues are key content of cement soil retaining wall design, including anti\|overturning, anti\|slipping, soil capacity in the bottom of retaining wall, the choices of c and φ values in the calculation of earth pressure. In the calculation of pit bracing design, there are some difference in different pit bracing Specifications. Based on the analysis of pit bracing Specifications and engineering cases, the difference has been discussed in this paper, and some advice has been presented.