摘要
贵州省黔西县高山煤矿为突出矿井,目前主要开采区域在一采区,4号煤层作为主采9号煤层的保护层进行开采,在1906运输顺槽的沿空留巷技术中,存在留巷时间跨度大、受上覆1408保护层工作面采动影响等因素制约,留巷难度极大;为解决沿空留巷支护问题,根据高山煤矿煤层顶底板岩性及受采动影响后的变形特征,研究制定了部分留巷、加强顶板支护等施工方案,在沿空留巷顶板支护效果方面取得了较好成效,确保了沿空留巷的成功实施。
Gaoshan Coal Mine in Qianxi County,Guizhou Province is a prominent mine.At present,the main mining area is in the first mining area,and the No.4 coal seam is used as the protective layer of the No.9 coal seam in the main mining.In the 1906 transportation lane,the remaining roadway technology exists.The time span of the roadway is large,and it is restricted by factors such as the mining effect of the overlying 1408 protective layer working face.It is very difficult to retain the roadway.In order to solve the problem of retaining roadway along the goaf,according to the lithology of the coal floor and the mining floor of the alpine coal mine The deformation characteristics,research and development of some roads,reinforcement of roof support and other construction plans,in the performance of the roof support along the road to achieve better results,to ensure the successful implementation of the roadway along the empty.
作者
王鹏伟
Wang Pengwei(Gaoshan Coal Mine of Guizhou Nengfa Co.,Ltd.)
出处
《现代矿业》
CAS
2019年第11期140-143,254,共5页
Modern Mining
关键词
采动
沿空留巷
运输顺槽
技术研究
Mining
Gob-side entry retaining technology
Transport slot
Technology research
