煤顶巷道树脂卷锚固高强锚索退锚工艺试验研究  

Trial on afterwardunloading of resin anchored high strength cable bolts in roadways with thick top coal

作　　者：韩朝军 梁建民 王建立 朱泽虎[2] 

机构地区：[1]邢台矿业集团公司邢台矿 [2]煤炭科学研究总院北京开采研究所

出　　处：《煤矿开采》1999年第2期34-35,52,共3页Coal Mining Technology

摘　　要：煤顶巷道采用树脂卷锚固高强度锚索补强支护效果良好，但在放顶煤开采时，巷道顶板在回采阶段不能及时垮落，造成回采工作面顶板管理和通风障碍。针对这一难题，文章介绍了两种锚索退锚工艺以及用退锚法放顶的实际效果。AbstractResin anchored high strength cable bolts has proved to be an effective mean of secondary reinforcement for roadways with thick top coal. However, during longwall retreating, hanging roof often occurs in rear of the two ends of longwall face, which may cause problem to ventilation system and roof control. This paper presents two kinds of technique to unload the cable bolts, with actual results in field trail being introduced.

关 键 词：煤顶巷道 锚索 退锚 树脂卷锚固 巷道支护 

分 类 号：TD353.6[矿业工程—矿井建设]