厚硬岩层控制下不规则断层煤柱冲击危险性研究  

Burst hazard analysis of irregular fault coal pillar controlled by thick hard rock stratum

作　　者：韩亮[1] 辛崇伟[2,3] 梁开山 程刚 夏方迁 王颜亮[3] HAN Liang;XIN Chong-wei;LIANG Kai-shan;CHENG Gang;XIA Fang-qian;WANG Yan-liang(Safety Engineering College,North China Institute of Science and Technology,Beijing 101601,China;School of Civil and Resources Engineering,University of Science and Technology Beijing 100083,China;Tengdong Coal Mine,Shandong Zaozhuang Mining Group,Zaozhuang 277522,China;School of Mechanics and Civil Engineering,China University of Mining and Technology（Beijing）,Beijing 100083,China;Beijing Anke industrial Polytron Technologies Inc.,Beijing 102200,China)

机构地区：[1]华北科技学院安全工程学院,北京101601 [2]北京科技大学土木与资源工程学院,北京100083 [3]北京安科兴业科技股份有限公司,北京102200 [4]山东枣庄矿业集团滕东煤矿,山东枣庄277522 [5]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《煤炭工程》2018年第9期79-82,共4页Coal Engineering

基　　金：廊坊市科技支撑计划项目(2017013149);中央高校基本科研业务费资助(3142017092)

摘　　要：根据矿压理论构建了断层构造应力及采空区转移支承压力计算模型,以典型冲击地压矿井为例,将二者耦合叠加得到了厚硬岩层控制下不规则断层煤柱应力分布情况,进而分析了冲击危险性。结果表明:应力峰值距采空区133m,达到62MPa;西侧距采空区75~239m为冲击危险区,东侧距采空区60~239m为冲击危险区,高位关键层未充分断裂是导致支承压力升高的主要原因。通过现场监测数据对计算结果进行了验证,该结果可作为冲击危险防治的理论依据。Based on the theory of mine pressure,calculation model of fault tectonic stress and abutment pressure of mined out area are constructed. Taking a rock burst mine as an example,the stress distribution of coal pillar with irregular faults under the control of thick hard rock strata is obtained by superposition of both of them,and then,the burst hazard is analyzed. The results show that the peak value of stress is 133 m away from the goaf,reaching 62 MPa,and the west side of the goaf 75 ~ 239 m is the burst danger zone,while the east side is 65 ~ 239 m. Incomplete fracture of high key stratum is the main reason for the increase of abutment pressure. The calculation results are verified by field monitoring data,and the results can be used as the theoretical basis for the prevention and control of burst hazards.

关 键 词：厚硬岩层 断层 煤柱 冲击危险性 支承压力 

分 类 号：TD324[矿业工程—矿井建设]