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出 处:《煤炭技术》2017年第6期58-60,共3页Coal Technology
基 金:河南省高等学校重点科研项目(16A440001);2017年度河南省科技攻关计划项目(172102310706)
摘 要:近距离煤层下行开采时,下层煤回采巷道的位置至关重要。针对106煤矿7#煤回采巷道的布置问题,通过数值模拟和理论分析研究得出:当考虑11采区上山与7#煤回采巷道连接时,7#煤层11701工作面回采巷道应采用垂直布置;当考虑6#煤层采动影响时,11701工作面的回采巷道应采用内错布置,11701的运输平巷由11601运输平巷向内平移15 m,11703的回风平巷由11603回风平巷向内平移25 m。It was important for mining roadway location in the lower coal seam when the coal seams were descending mining in close distance coal seams. Aim at the location of mining roadway of No.7 coal in the 11 mining area of 106 coal mine,by the method of theoretical analysis and numerical simulation. It was confimed:when the connection between rise entry and mining roadway was considered, the mining roadway location of No.7 coal was vertical to the location of mining roadway; considering the mining influence of No.6 coal, the mining roadway location of No.7 coal moved inward from the location of mining roadway of No.6 coal, the headentry of 11701 working face moved inward 15 m from the location of the headentry of 11601 working face, and the tailentry of 11703 working face moved inward 25 m from the location of the tailentry of 11603 working face.
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