以某煤矿为工程背景 ,在分析原位多点实测应力分布特征的基础上 ,通过建立适合工程特点的数值分析模型 ,采用 DDM( Displacement Discontinuity Method)模拟了该工程区域的复杂断裂构造应力场 .分析探讨了复杂断层构造对煤矿区域应力状态的影响 .研究结果表明 ,煤矿区域原岩应力分布状态主要受断层构造的支配 ,断层的叠加扰动使原岩应力场重新分布 ,造成煤矿区域原岩应力状态的极端各向异性特征 Taking a coal mine as the engineering background, based on the analysis of the measured stress distribution characteristics in situ, a DDM (Displacement Discontinuity Method) was used to simulate the complex fault structure stress field in this project by establishing a numerical analysis model suitable for the engineering characteristics. The results show that the stress distribution of the original rock in the coal mine area is dominated by the fault structure, and the superimposed disturbance of the fault redistributes the stress field of the original rock, resulting in the stress of the original rock in the coal mine area Extreme anisotropy of state