【摘要】 本文是以华北地区地应力实测结果,采用有限单元计算方法反演华北地区构造应力场。确定较符合该地区的边界外力为北东70°和近东西方向;确定最大主应力集中区,最大剪切应力集中区和最大主应力作用下的断层。为华北地区应力场分析;为继续进行的地应力测量点的选择,以及研究该区断层活动情况提供参考资料。更多还原

【Abstract】 In this paper the tectonic stress field in North China is inversed from the actual str- ess measurements by the finite element method. It has been determined that the external forces of this area are N70°E and nearly E-W. In addition, the maximum principal stre- ss concentration zone, the maximum shear stress concentration zone and faults under the maximum principal stress are also pointed out. These data can be used as a reference for analyzing the stress field in North China and selecting the measuring points in further stress measurement as well as investigating the fault activity in this area.更多还原