荆各庄矿工业场地煤柱开采对井筒变形影响研究

煤矿井筒是整个矿井的咽喉,在对资源枯竭型矿井的工业场地煤柱进行回收时,必须对井筒进行合理保护,只有井筒及工业场地建筑物满足变形要求时,才能对煤柱进行合理回收,因此在对工业场地煤柱进行开采方案设计后对开采方案进行准确的移动变形预计十分重要。通过概率积分法和FLAC软件进行模拟分析,2种方法计算结果相近,FLAC软件形象地模拟了井筒附近煤柱采动后岩体的应力、位移和破坏特征,为工业场地煤柱开采提供了依据。

Study on Deformation of Shaft Caused by Industry Square Pillar Mining in Jinggezhuang Mine

The shaft is the throat of mine,recovery in the industry square pillar of resource exhausted mine,reasonable protection is necessary to shaft,only the shaft and industry square building to meet the requirements of deformation,can the coal pillar is recovery,so deformation calculation is very important after the design of industry square pillar. Through simulation analysis using probability integral method and the FLAC software is used,and similar results were obtained,the stress,displacement and failure characteristics after mining can be simulated clearly by the FLAC software,provide the basis for the industrial square pillar mining.