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机构地区:[1]铁法煤业集团公司大兴煤矿,辽宁调兵山112700
出 处:《煤炭技术》2008年第3期59-61,共3页Coal Technology
摘 要:在放顶煤开采过程中,留窄小煤柱全煤巷道矿压较大,沿空掘巷在回采过程中支护较为困难,运输顺槽支护方式的确定更为显得重要。铁煤集团大兴煤矿N2-701综放工作面运输顺槽顶板压力较大。文章详细介绍了留窄小煤柱运输顺槽在回采过程中支护方式的合理性方案选择。During the period of caving coal mining, the coal tunnel pressure is greater with leaving narrow and small coal pillars, the support of driving tunnels along goaf is more difficult during the period of mining. The determination of support way in transfort crossheadings is more important. The roof pressure is great in trans- port crossheadings at No.2 -701 fully mechanized and caving face in Daxing Coal Mine of Tiefa Coal Industry Group. In this paper, the rational project choice of support ways in the period of mining of transport crossheadings is introduced.
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