四柱式与两柱式放顶煤支架适用条件分析  

Suitable conditions for four-leg and two-leg sublevel caving shield supports

作　　者：于海湧[1] 于海波[1] 吴兆华[1] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京市朝阳区100013

出　　处：《中国煤炭》2011年第9期59-63,共5页China Coal

摘　　要：通过神东大柳塔煤矿应用的两柱式放顶煤支架和潞安屯留煤矿(余吾煤业公司)应用的四柱式放顶煤支架的矿压观测数据,分析了两种支架的理论支护效率和实际运行状态,提出了两种支架的适用条件,为今后各矿实施放顶煤开采选择合理的架型提供参考。The suitable conditions were proposed on the basis of data from strata pressure behavior using two-leg shield supports in Liuta Coal Mine of Shenhua Group and four-leg shield supports in Tunliu Coal Mine of Lu＇an Group.The theoretical supporting efficiency and the practical operating status of two kinds of supports were analyzed and the suitable conditions for their application were proposed,providing a reference for different coal mines to choose proper supporting pattern when caving roof coal.

关 键 词：放顶煤 两柱掩护式支架 四柱支撑掩护式支架 

分 类 号：TD355[矿业工程—矿井建设]