Discussion on Goaf Roadway Control in Fully Mechanized Caving Face of "Three Soft" Medium Thick Coal Seam  

作　　者：CAIShijie 

机构地区：[1]LulingCoalMineofHuaibeiMiningGroup,SuzhouAnhui234000,China

出　　处：《外文科技期刊数据库(文摘版)工程技术》2022年第6期112-117,共6页

摘　　要：The wind tunnel of Ⅱ946 fully mechanized caving face in Luling Coal Mine is a driving tunnel along the goaf. Affected by the mining, the mine pressure appears violently and the tunnel deformation is obvious. The phenomena such as large roof subsidence, large movement of two sides, failure of support and serious floor heave exist, which lead to whether the support is large and the section of the tunnel cannot meet the safety requirements of ventilation and pedestrians. This brings great risks to the safe production of the mining area, greatly increases the labor intensity of workers and severely restricts the mining progress of the working face. Huaibei Mining Group Luling Coal Mine Fully Mechanized Mining Area 2 has not let go of this difficult problem. It has continuously and deeply explored the wind tunnel control measures, summed up the "1+2+3" and "three soft" medium thick coal seam fully mechanized caving face gob-side entry control method, solved the "three soft" medium thick coal seam fully mechanized caving face gob-side entry control problem, and ensured the "three soft" medium thick coal seam fully mechanized caving face safe mining.

关 键 词："three soft" coal seam fully mechanized top coal caving face two lanes management 

分 类 号：TD745[矿业工程—矿井通风与安全]