陈楼煤矿工业广场煤柱开采研究

为了挖掘老矿井的潜力,延长老矿井服务年限,增加煤炭资源的开采,就陈楼煤矿区工业广场煤柱9714采区进行开采方案研究。为了保证现有的井下巷道和井筒提升系统等重要建(构)筑物不受损害,提出了全采和条采相结合的开采方案,在合理选择参数的条件下利用概率积分法对地表移动变形进行了预计,分析了设计方案对井上下重要建(构)筑物的影响。实际开采过程中在工业广场范围内布设了沉陷观测站,实施动态观测。实践和观测表明,该方案可行,为该矿取得了良好的经济和社会效益,其经验可为后续开采及其他类似矿井开采借鉴。

Research on Mining Protective Coal Pillar for Industrial Square of Chenlou Colliery

For prolonging old mines' length of service and increasing coal output,this paper researched the mining design for 9714 Mining Section in coal pillar under industrial square of Chenlou Colliery.This paper also put forward a scheme of combining whole mining and strip mining for protecting current important buildings such as roadway and lifting system.With probability integral method,it predicted surface movement and deformation by rationally selecting prediction parameters and analyzed influence of this scheme on important surface and underground buildings.In actual mining procedure,subsidence observation station was set up within the industrial square.Observation result showed that this scheme was feasible.Good economic and society profit has made and its success may provide reference for later mining and other mines with similar conditions.