浅埋深特厚松散煤层巷道支护技术研究与应用  

Anchored Bolt Supporting Technology and Its Application in Shallow-buried Extremely-thick Loose Coal-seam

作　　者：范明建[1] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京100013

出　　处：《煤矿开采》2013年第2期45-48,共4页Coal Mining Technology

基　　金：国家科技支撑计划课题(2012BAK04B08)

摘　　要：针对平朔矿区浅埋深特厚煤层赋存条件,通过系统的地质力学测试,对煤层巷道地应力状态、煤岩体强度以及围岩结构特征进行了分析。针对矿区典型煤巷锚杆支护现状,提出了巷道支护参数及材料选取存在的问题,经过理论分析和数值计算,对巷道支护参数进行优化设计并进行现场工业性试验,试验表明,优化后的支护参数有效地控制了巷道变形和破坏。By geological mechanics test, in-situ stress state, coal and rock strength and surrounding rock structure characteristics were analyzed based on shallow buried and extremely-thick coalseam condition in Pingshuo mining area. Current coal roadway supporting status and problems in supporting parameters and material selection were indicated. Supporting parameters were optimized and applied in underground test by theoretical calculation and numerical simulation. Practice showed that optimized supporting could effectively control roadway distortion and failure.

关 键 词：浅埋深 特厚煤层 巷道支护 支护参数优化 

分 类 号：TD353[矿业工程—矿井建设]