基于三维地应力场反演的冲击危险区域评价研究

为了提高矿井冲击危险区域评价精度,基于三维地应力场反演技术开展了相关研究。以集贤煤矿9号煤层西二采区为研究对象,在地质构造特征分析、煤岩物理力学性质和矿井地应力实测的基础上,根据多元线性回归原理对三维地应力场进行数值模拟反演,获得了研究区域内三维地应力场的相关信息,在综合考虑构造应力和采动应力影响的情况下,实现了对9号煤层西二采区冲击危险的宏观评价和对局部范围内冲击危险的精确评价,指导矿井的安全生产。

Ludy on Impacting Dangerous Zone Evaluation Based on 3D Stress Field Inversion

In order to improve the mine impact danger zone evaluation precision, relative study about 3D stress field inversion technology was carried out. No. 9 coal seam, No. 2 west mining area of Jixian Mine was taken as study object, based on geological structure characteristics analysis, coal rock physical and mechanical properties and mine ground stress measurement, according to 3D stress field numerical simulation inversion by multiple linear regression theory, relative information about 3D stress field inversion in the study field was obtained, in consideration of tectonic stress and the influence of mining stress conditions, No. 9 coal seam, No. 2 west mining area impacting danger macroscopic evaluation and precise evaluation of risk impact to local scope were realized, which guided the mine safety production.