【摘要】 根据地应力测量数据 ,研究了显德汪煤矿 9# 煤层底板岩体应力分布规律 ,并进行了三维有限元数值模拟 ,得到了 9# 煤层底板最大破坏深度值。研究结果将为煤矿安全生产提供科学依据。更多还原

【Abstract】 According to the data of stress measurement,researched the stress distribution regularity of No.9 coal seam floor and 3D finite-element numerical simulation in Xian Dewang Coal Mine.It is provided that the data of No.9 coal seam floor’s failure depth. The study results provide scientific basis for the safety in mining.更多还原