本文以西南山区膨胀土为对象,对膨胀土重力挡墙土压力进行敏感性分析,识别了对膨胀土地区土压力影响较为显著的几个典型风险因素,并针对各潜在的风险要素给出了初步工程建议,为后续进一步进行风险因素防范对策研究奠定了基础。本研究方法及形成的敏感性研究结果,对设计、施工和运营中的风险识别、分析、评估、评价及应对有指导意义。 In this paper, the expansive soil in the mountainous area of ​​Southwest China is taken as an object to conduct the sensitivity analysis of the earth pressure of the expansive soil gravity retaining wall. Several typical risk factors that have a significant impact on the earth pressure in the expansive soil area are identified, and the potential risk factors are given The preliminary project proposal laid the foundation for further research on the prevention measures of risk factors. The research methods and results of the sensitivity studies formed are instructive in identifying, analyzing, evaluating, evaluating and responding to risks in the design, construction and operation.