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本文在参考已有资料的基础上，分析了重庆市浅埋地下洞室安全顶板厚度的影响因素。采用有限单元数值模拟法研究了地基与洞室相互作用下的破坏机制，以及各影响因素对浅埋地下洞室安全顶板厚度的影响及相关变化规律，并用逐步线性回归的方法得出了一个能综合考虑各影响因素的安全顶板厚度的预测模型。本文最后还分析了顶拱裂隙对安全顶板厚度的影响。
Based on the existing data, this paper analyzes the factors influencing the safety roof thickness of shallow underground caverns in Chongqing. The failure mechanism under the interaction between the foundation and the cavern is studied by finite element numerical simulation. The influence of various factors on the safety roof thickness of shallow cavern and the related variation rules are also studied. By using the method of stepwise linear regression, Comprehensive prediction model of safety roof thickness considering all factors. Finally, the paper also analyzes the impact of roof arch cracks on the safety roof thickness.