介绍了基于三维有限元正演分析和将岩体自重及构 造应力作为地应力的主要组成因素的地应力多元回归反演方法。并以深圳抽水蓄能电站为实 例，通过拟合实测地应力资料获得对应于地应力构成因素的回归系数，并得到整个工程区的 岩体初始应力场。

Considering the gravity and tectonic stress as the ma in factors of in -situ stress of rock mass, a multivariate re gression method，based on 3 -D FEM direct modeling，is summar ized. The method is applied to Shenzhen Pumped Storage Power Plant, the regressi on coefficients corresponding to the in -situ stress factors are determined by fitting the stress measured values, and the initial stress fie ld is obtained for the rock mass of whole engineering. 