厚层泥岩顶板巷道矿压规律研究及支护参数优化  

Study on strata behavior regularity and support parameters optimization on the condition of thick mudstone roof

作　　者：刘栋[1] 阚磊[2] 任松杰[1] 蒋志刚[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏省徐州市221008 [2]皖北煤电集团公司钱营孜煤矿,安徽省宿州市235162

出　　处：《中国煤炭》2011年第9期52-54,共3页China Coal

摘　　要：针对云南小发路煤矿巷道顶板为厚层泥岩且变形严重的特点,通过矿压观测总结了围岩破坏及巷道变形规律。观测结果表明,巷道掘后初期破坏活动集中于围岩浅部,此时应当及时采取有效支护措施,防止破坏向围岩深部发展,并在此基础上探讨了原有支护方案存在的问题。使用数值模拟的方法优化并选择了支护参数,指出,增加锚杆长度及支护密度可以有效改善巷道围岩变形情况。According to the characteristics that the roof of roadway is thick mudstone and deformation is serious in XiaoFalu colliery,summarized the rules of surrounding rock damage and roadway deformation by observing strata control,showed that failure concentrated on shallow parts of surrounding rock during the initial stage of roadway excavation,effective support measures should be taken in time to prevent the failure of deep surrounding rock,and discussed the problems existing in original supporting scheme.Optimize the support parameters by numerical modeling,pointing out that increasing the length of anchor and strengthening supporting density can improve effectively the deformation of the surrounding rock.

关 键 词：厚层泥岩顶板 巷道矿压规律 巷道支护 参数优化 

分 类 号：TD353.6[矿业工程—矿井建设]