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在分析断层周边实测应力分布特点的基础上，通过建立ＦｒｉｃｔｉｏｎｌｅｓｓＮｏ－ｔｅｎｓｉｏｎ参数式数值模型，采用位移不连续数值方法模拟评价了复杂断层扰动下的非均匀原岩应力场，得到了与实测应力分布特征高度吻合的计算结果，并比较分析了断层对其周边区域应力状态的影响．结果表明：原岩应力状态的空间分布主要受其邻近断层的支配，应力场的扰乱范围与断层的几何尺寸密切相关；非连续地层区域的原岩应力状态及应力扰乱程度随空间位置而异，具有各向异性及非线性的分布特征；由于断层对原岩应力的扰乱作用，有限“点”的实测值不能全面反映构造应力场的全貌，数值模拟是区域岩体应力场定量分析与评价的不可缺少的手法
Based on the analysis of the measured stress distribution around the fault, the non-uniform original rock stress field under complex fault disturbances was simulated and simulated by establishing the Frictionless-Non-tension parametric numerical model and using the discontinuous displacement numerical method. Highly consistent calculation results, and comparative analysis of the impact of the fault on the surrounding area of the stress state. The results show that the spatial distribution of the stress state of the original rock is dominated by the adjacent faults, and the disturbance range of the stress field is closely related to the geometric size of the fault. The original rock stress state and stress disturbance in the discontinuous formation zone vary with the spatial location, It has anisotropy and non-linear distribution characteristics. Due to the disruptive effect of fault on original rock stress, the measured value of finite “point” can not fully reflect the whole tectonic stress field. Numerical simulation is the quantitative analysis and evaluation of the stress field of regional rock mass Indispensable method