基于FLAC3D的大型采空区群稳定性数值模拟分析
Numerical simulation on stability of large goaf group base on FLAC3D
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摘要: 根据采空区群分布情况，首先用高精度BLSS-PE矿用三维激光扫描测量系统进行精密探测，获得了105万m3大型采空区群，然后采用数值模拟软件FLAC3D计算分析该采空区群稳定性状况，模拟结果显示，间柱多发生塑性破坏，采空区群上下盘易发生拉破坏，存在大规模冒落危害，安全隐患突出。Abstract: According to the distribution of goaf group in a certain mine, first of all, the large goaf group of 10 500 000 m3 were detected using high-precision BLSS-PE, and then the stability of goaf group was analyzed with numerical simulation software-FLAC3D.The results show that, the plastic damage areas of the many pillars existed, and the hanging and lower walls on the goaf group tensile damage occurred.These damage areas were a potential safety hazard, and easy to occur mass caving.
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