CAJ | 학술논문

采用FLAC3 D数值模拟软件，以义马煤矿25110工作面为原型，对逆冲断层周围地应力分布进行数值模拟，分析了断层剖面、断层下盘剖面与煤层截面相交处、沿煤层倾向方向剖面的地应力分布，得出断层的存在使得上下盘的应力出现了不连续，岩层与煤层不同的物理力学性质在高应力下也表现出了不同的受力状态，最大主应力、最小主应力分布分别与z 方向应力、水平x 方向应力基本一致，为有冲击矿压危险的煤层进行防突优化设计提供了依据。
채용FLAC3 D수치모의연건，이의마매광25110공작면위원형，대역충단층주위지응력분포진행수치모의，분석료단층부면、단층하반부면여매층절면상교처、연매층경향방향부면적지응력분포，득출단층적존재사득상하반적응력출현료불련속，암층여매층불동적물리역학성질재고응력하야표현출료불동적수력상태，최대주응력、최소주응력분포분별여z 방향응력、수평x 방향응력기본일치，위유충격광압위험적매층진행방돌우화설계제공료의거。
Taking No.25110 working face in Yima Coal Mine as the research object,using FLAC3D software,the paper makes a numerical simulation on the ground stress distribution a-round the thrust fault and analyzes the stress distribution of fault section,footwall section and the intersection of the coal seams sections,and section along coal seam inclination direction to have obtained that because of the fault,the stress of the hanging wall and footwall is discontinu-ous;under high stress,the stress states of rocks and coal seams is different for their different physical and mechanical properties;distribution of maximum principal stress and minimum prin-cipal stress respectively accord with the stress of the vertical z-direction and the horizontal x-di-rection.These results provide theoretical basis for the outburst prevention optimal design for the coal seam with risk of rock burst.