在初始地应力和岩石性质参数已知的情况下，利用平面弹性复变方法获得了深埋地下洞室的位移解析解。在使用有限单元法进行位移反分析时，将此位移视作为“实测位移”。给定不同大小的有限元网格划分范围，可以反算出不同的初始地应力和岩石性质参数，将此结果与给定的已知值进行比较，即可确定满足精度要求的有限元网格划分范围。 Under the condition that the initial ground stress and rock properties are known, the displacement analysis solution of the deep underground cavern is obtained by the plane elastic complex method. In the displacement back analysis using the finite element method, this displacement is considered as “measured displacement.” Given different sizes of finite element meshing ranges, different initial stress and rock properties parameters can be inversely calculated. This result can be compared with a given known value to determine the finite element meshing that meets the accuracy requirements. range.