摘要
针对回坡底矿下分层煤层11号煤11-101工作面回采巷道布置情况,分析内错、外错、重叠布置的优缺点,结合现场顶板及两帮围岩变形实测数据,最终确定11-101工作面回采巷道采用重叠布置为宜,既提高了煤炭资源采出率,又降低了巷道维护成本,经济效益明显、值得推广。
To know the roadway layout of the bottom slicing of No.11-101 working face of No.ll coal seam in Huipodi Mine, advantages and disadvantages of inward and outward staggered layout and overlapping layout are analyzed. Combined with field data of surrounding rock deformation of roof and both sides, overlapping layout is finally determined for the No.11-101 working face. The technology could increase the mining rate of coal resources and reduce the maintenance cost for roadways, which has achieved obvious economic benefits and is worth popularization.
出处
《山西煤炭》
2014年第11期7-9,共3页
Shanxi Coal
关键词
下分层煤层
巷道布置
围岩变形
重叠布置
bottom slicing of coal seam
roadway layout
surrounding rock deformation
overlapping layout
