水泥土挡墙整体稳定的敏感性分析

水泥土挡墙广泛应用于软土地区基坑支护。针对目前对于水泥土挡墙的整体稳定性与其影响因素之间相关性认识不足，引入正交设计方法分析水泥土挡墙整体稳定影响因素墙体厚度、嵌固深度、土体粘聚力、土体内摩擦角、土层重度、地下水位、地面超载的重要性和敏感性规律。分析结果表明，土的抗剪强度指标是影响水泥土挡墙的最重要因素，其变化对整体稳定有高度显著影响；而墙体厚度和嵌固深度对水泥土挡墙整体稳定无显著影响。

Sensitivity analysis of overall stability of cement-soil retaining wall

Cement-soil retaining wall is widely used for excavation supporting in soft soil area. Aiming at the deficiency of view on correlation between stability of cement-soil retaining wall and its influential factors, orthogonal design method is introduced to analyze the significance and sensitivity of some influential factors such as wall width，embedded depth，shear strength indices，unit weights，groundwater levels and ground load. The analytical result shows that the shear strength indices are the most important and sensitive factors influencing the overall stability of cement-soil retaining wall; and the change of shear strength indices has highly prominent influence on the overall stability of cement-soil retaining wall. But the change of wall width and embedded depth has no prominent influence on the overall stability of cement-soil retaining wall. The conclusions may be useful for the design and construction of cement-soil retaining wall.