杨村煤矿单轨吊运输厚灰岩巷道顶板稳定性研究  

Study on roof stability of thick limestone roadway transported by monorail crane in Yangcun Mine

作　　者：王庆路[1] 王伟[1] 幸奠军[1] 张强[1] Wang Qinglu;Wang Wei;Xing Dianjun;Zhang Qiang(Yangcun Mine,Yanzhou Coal Industry Corporation Ltd.,Jining 272118,China)

机构地区：[1]兖州煤业股份有限公司杨村煤矿,山东济宁272118

出　　处：《煤炭与化工》2021年第1期13-16,20,共5页Coal and Chemical Industry

摘　　要：针对杨村煤矿六采区巷道厚灰岩顶板在单轨吊作用下承受集中应力,在无支护的条件下顶板是否稳定的问题,通过分析单轨吊在厚顶板的受力情况,确定了悬挂点的最大受力以及顶板的挠度范围,并对六采区工作面16上煤层巷道稳定性进行了数值模拟分析,对比分析不同厚度、不同载重条件下顶板的围岩垂直应力、垂直位移以及围岩塑性区的演变规律。通过现场工程实践,矿压监测结果表明,巷道围岩及顶板位移量小,巷道稳定。In view of the problem that the thick limestone roof of No.6 mining area of Yangcun Mine bearing the concentrated stress under the action of monorail crane,whether the roof is stable without support,the maximum stress of the suspension point and the deflection range of the roof was settled by analyzing the stress situation of the monorail crane in the thick roof,and the numerical simulation analysis on the stability of the coal seam roadway on the No.16 working face of the sixth mining area was carried out.The vertical stress,vertical displacement and plastic zone evolution of surrounding rock under different thickness and load conditions were compared.The mine pressure monitoring showed that the displacement of surrounding rock and roof was small and the roadway was stable.

关 键 词：单轨吊 无支护顶板 围岩稳定 

分 类 号：TD353[矿业工程—矿井建设]