|
|
|
| Optimization of stoping design of island working face in extra thick coal seam |
| Wang Xingxing, Wang Yajun |
| Tongxin Coal Mine, Jinneng Holding Coal Industry Group, Datong 037000, China |
|
|
|
|
Abstract In order to realize the rapid stoping of fully mechanized caving face in extra-thick coal seam and further shorten the stoping time, the steel wire rope was used to replace part of the support in 8102 isolated island working face of Tongxin Coal Mine. Under the premise of ensuring safety, the stoping support was optimized. Compared with the previous support scheme of the traditional working face, a part of the steel wire rope and 6.3 m anchor cable were added, 73 3.8 m I-steels were reduced, 786 8.3 m anchor cables were reduced, and 584 2.8 m anchor bolts were reduced. The overall material cost and labor cost were saved by CNY 706 million. 8102 isolated island working face only completed all stop mining support in 12 days, saving 5.6 days on average, and realized rapid stop mining, which provided experience for rapid stop mining of fully mechanized caving face in extra thick coal seam in Datong mining area.
|
|
|
|
|
|
| [ 1 ] 段 博. 近距离煤层综采工作面停采支护技术与实践[ J ]. 能源与节能，2021（ 5 ）：215 - 216.
[ 2 ] 邹晓纬. 综采工作面停采期间顶板支护技术及应用研究[ J ]. 山东煤炭科技，2021，39（ 1 ）：60 - 62.
[ 3 ] 赤永东. 极破碎顶板条件下停采支护技术的研究与实践[ J ]. 煤，2019，28（ 8 ）：1 - 3，90.
[ 4 ] 王嘉俊. 特厚煤层综放工作面停采支护技术研究[ J ]. 煤炭科技，2019，40（ 3 ）：34 - 36，48.
[ 5 ] 杨树新. 综放工作面停采支护工艺优化技术研究[ J ]. 陕西煤炭，2017，36（ 5 ）：125 - 126.
[ 6 ] 刘志伟. 特厚煤层综放工作面停采方案的研究[ J ]. 山西焦煤科技，2016，40（ 8 ）：28 - 30. |
|
|
|
