摘要
为解决极近距离煤层群下层煤回采巷道支护难题,以山西省中阳荣欣焦化有限公司高家庄煤矿3号煤层为研究对象,对极近距离煤层群下层煤巷道支护技术进行了研究。通过现场观测和理论分析,在下层煤回采巷道采用复合支护方式,使围岩压力显现得到控制,有效减低支护成本,为安全生产工作提供有力保障,为类似矿井条件下极近距离煤层群开采支护提供参考。
In order to solve the support problem of lower coal mining roadway in extremely close distance coal seam group,taking No.3 coal seam of Gaojiazhuang Coal Mine of Shanxi Zhongyang Rongxin Coking Co.,Ltd.as the research object,the support technology of lower coal roadway in extremely close distance coal seam group was studied.Through on-site observation and theoretical analysis,the composite support method was adopted in the lower coal mining roadway to control the surrounding rock pressure,effectively reduced the support cost,provided a strong guarantee for safe production work,and provided a reference for the mining support of extremely close coal seams under similar mine conditions.
作者
邱文华
Qiu Wenhua(Shanxi Zhongyang Rongxin Coking Co.,Ltd,Lvliang 033400,China)
出处
《煤炭与化工》
CAS
2022年第12期15-18,共4页
Coal and Chemical Industry
关键词
极近距离煤层群开采
泥岩薄板结构
复合支护技术
extremely close coal seam group mining
mudstone thin plate structure
composite support technology
