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作 者:张俊杰 LE QUY BAO 赵文琪 连鸿全 Mirzo Yunusov Zhang Junjie;LE QUY BAO;Zhao Wenqi;Lian Hongquan;Mirzo Yunusov(Hegang Mining Company of Longmei Group,Heilongjiang,154100;School of Mining,Liaoning University of Engineering and Technology,Liaoning,123000)
机构地区:[1]龙煤集团鹤岗矿业公司,黑龙江154100 [2]辽宁工程技术大学矿业学院,辽宁123000
出 处:《当代化工研究》2022年第21期47-49,共3页Modern Chemical Research
摘 要:冲击地压是煤矿开采最为严重的动力灾害之一,已成为亟待攻克的世界性难题。冲击地压的发生是自然地质动力条件和开采工程扰动条件共同作用的结果。冲击地压产生的动力机制是在工程区域的煤岩体中有能量的存在,其动力学基础是能量的积聚。自然地质动力条件下的煤岩体内的能量积聚与构造活动、应力场变化有关。依据地质动力区划Ⅴ级断块图,建立了峻德煤矿岩体应力计算模型,对峻德煤矿17煤层进行岩体应力分析计算,分析了17煤层不同构造应力区对矿井冲击地压的影响。Rock burst is one of the most serious dynamic disasters in coal mining,and it has become a worldwide problem that needs to be overcome urgently.The occurrence of rock burst is the result of the combined action of natural geodynamic conditions and mining engineering disturbance conditions.The dynamic mechanism of rock burst is the existence of energy in the coal and rock mass in the engineering area,and its dynamic basis is the accumulation of energy.The energy accumulation in the coal-rock body under natural geodynamic conditions is related to the tectonic activity and the change of the stress field.According to the fault block diagram of grade V in the geodynamic division,the rock mass stress calculation model of Junde coal mine is established,and the rock mass stress analysis and calculation of the 17th coal seam of Junde coal mine are carried out,and the influence of different tectonic stress areas of the 17th coal seam on the mine rock burst is analyzed.
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