CAJ | 학술논문

通过FLAC3D软件对演马庄矿掘进巷道过F147断层过程中煤岩内部应力场分布规律进行数值模拟，研究巷道掘进过程中断层附近应力值的变化．模拟结果表明：F147断层带附近煤岩体破碎、裂隙发育，在采动影响下断层“活化”．随着距断层面距离的减小，煤层及其顶板岩体破坏程度随之增加，使得断层面附近应力得到释放，断层面处压剪应力集中得以缓解，但是拉应力增大．通过进一步研究，确定了F147断层带的影响范围约为10m，从而说明该方法能正确模拟巷道掘进过断层过程中煤岩内部应力场分布规律，进而可以有效地指导实践。
통과FLAC3D연건대연마장광굴진항도과F147단층과정중매암내부응력장분포규률진행수치모의，연구항도굴진과정중단층부근응력치적변화．모의결과표명：F147단층대부근매암체파쇄、렬극발육，재채동영향하단층“활화”．수착거단층면거리적감소，매층급기정판암체파배정도수지증가，사득단층면부근응력득도석방，단층면처압전응력집중득이완해，단시랍응력증대．통과진일보연구，학정료F147단층대적영향범위약위10m，종이설명해방법능정학모의항도굴진과단층과정중매암내부응력장분포규률，진이가이유효지지도실천。
In this paper, the stress variation of nearby fault structure F147 is studied during the coal mining based on the numerical simulation of the stress distribution law in the coal rock for Yanmazhuang Mine by using FLAC3D software. The results show that the coal rock is broken; the fracture is expanded and the fault structure will be activated under the influence of the mining. With the reducing in distance between coal bed and rock roof, the destroy degree is aggrabated, so the stress at the nearby fault structure is released, and the crushing and shearing stress concentration of the fault can be relieved, but the pulling stress is added. According to the further studies, the range of influence is 10 meters, which shows that the proposed simulating methods can analyze the distribution law of stress field of coal rock during the mining in crossing fault, and the results can provide the reference value for practice.