Inversion Analysis of Initial Geostress Field in the Coal Mine Area of Shanxi Jincheng

Aiming at the topography features of Chengzhuang Coal Mine Areas in Shanxi Jincheng, the basic theory of the geostress formation was considered. Combined with the geostress measured data, the 3D calculation model was established. Through the method of multiple liner regression analysis, and all the regression coefficients of the basic stress field could be worked out. Finally, the linear superposition was conducted, and the initial geostress field of coal mine areas was inversed accurately. The inversion results showed that the stress field of this region was characterized both dominated by the self-weight stress and comprehensively effected by the horizontal tectonic stress field.