孤岛开采对矿井通风系统的影响性研究

Influence Research on Mine Ventilation System by Isolated Island Working Face Mining

针对某煤矿孤岛A工作面回采后孤岛面供风困难、向邻近采空区C的漏风量增加、矿井局部巷道阻力显著增大等问题,对矿井通风基础数据进行测定分析与模拟,建立可靠的风网解算模型;利用计算机网络模拟软件对孤岛A工作面回采后矿井通风系统进行模拟解算,根据解算结果制定孤岛A工作面回采后矿井通风系统优化方案。由此,对孤岛开采下的矿井通风系统通风困难及采空区火灾防治提供了技术指导。

There are some difficulty problems that caused by Isolated island A working face mining, such as isolated island workingface ventilation difficulty, air leakage to nearly goaf C increased obviously, local roadway resistance of mine increased obviously, afterbasic data of mine ventilation was measured and simulated, and reliable wind network calculation model was built, mine ventilationsystem was simulated by computer simulation software, after isolated island working face mining, mine ventilation system optimizationscheme was put forward according calculation results, so it references technical guidance for ventilation difficulty and goaf fire preventionwith isolated island working face.