地应力回归分析方法与工程应用实例

Geostress Regression Analysis Method and Engineering Case Application

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 main factors of in-situ stress of rock mass, a multivariate regression method, based on 3-D FEM direct modeling, is summarized. The method is applied to Shenzhen Pumped Storage Power Plant, the regression coefficients corresponding to the in-situ stress factors are determined by fitting the stress measured values, and the initial stress field is obtained for the rock mass of whole engineering.