摘要
针对保德煤矿综放工作面多巷道布置下存在的回采期间瓦斯防治、生产成本及接续等问题,提出了巷道布置方式优化方案、优化后工作面通风方式及采空区瓦斯抽采方式,并通过技术、经济对比分析,确定并完善了工作面巷道布置方式及工作面回采期间瓦斯治理方法,最后在保德煤矿81505工作面进行了现场试验应用,应用结果表明,综放面巷道布置优化后瓦斯防治效果及经济效益显著,可为类似开采技术条件下综放工作面巷道布置及瓦斯防治提供有益借鉴。
In view of the problems of gas prevention and control,production cost and succession during stoping in the multi-entry arrangement of fully mechanized top coal caving face in Baode Coal Mine,the optimization scheme of roadway layout,the working face ventilation and goaf gas extraction were put forward,through the comparison and analysis of technology and economy,the roadway layout and gas control method during the working face stoping are determined and perfected.The optimization scheme was applied in Baode Coal Mine and the effect of gas prevention and control was favorable after the roadway layout optimization,and it can provide reference for roadway layout and gas prevention and control in fully mechanized top coal caving face under similar conditions.
作者
孙炳兴
SUN Bing-xing(National Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China;CCTEG Chongqing Research Institute,Chongqing 400037,China)
出处
《煤炭工程》
北大核心
2021年第5期7-12,共6页
Coal Engineering
关键词
综放开采
巷道布置
下行通风
瓦斯治理
fully mechanized top coal caving mining
roadway layout
descentional ventilation
gas control
