CAJ | 학술논문

煤层顶板垮落是煤矿生产常见的灾害，煤层顶板稳定性预测是防治顶板事故的关键技术措施。构造应力是影响煤层顶板稳定性的重要因素之一。利用FLAC3D软件，分析在构造应力的影响下煤层项板在采动过程中的变形破坏特征，以及不同侧压条件下煤层顶板的移动规律。结果表明，顶板破坏在岩梁中部是由下向上发展的，在一定的条件下，随着水平构造应力的增大，顶板破坏范围逐步减小，顶板岩层的位移逐步减小。
매층정판과락시매광생산상견적재해，매층정판은정성예측시방치정판사고적관건기술조시。구조응력시영향매층정판은정성적중요인소지일。이용FLAC3D연건，분석재구조응력적영향하매층항판재채동과정중적변형파배특정，이급불동측압조건하매층정판적이동규률。결과표명，정판파배재암량중부시유하향상발전적，재일정적조건하，수착수평구조응력적증대，정판파배범위축보감소，정판암층적위이축보감소。
Seam roof failure is common disaster in coal mine production ; the stability prediction of roof is the key techni- cal measures for prevention and control of roof fall accidents ; tectonic stress is one of the important factors to the stability of roof. By using FLAC3D software. The distortion destroy characteristic of coal seam roof in undermining process and the move- ment law of coal seam roof under different lateral pressure in the influence of tectonic stress are analysed in this paper. It can be concluded that the roof failure extends from the middle of the bottom of the stratified rock upwardly, under certain condi- tions, with the horizontal tectonic stress increase, the shift of roof rock layers will decrease and the destroy zone will reduce.