过小窑破坏区巷道支护设计  

Support Design of Mine Roadway Passing Through Failure Zone of Previous Small Mine

作　　者：贾存华 

机构地区：[1]山西煤炭运销集团有限公司,山西太原030002

出　　处：《煤炭工程》2014年第6期53-55,共3页Coal Engineering

摘　　要：大通煤业材料大巷掘进通过小窑破坏区时,出现围岩应力集中、稳定性差、巷道施工难度大、安全危胁大等问题,基于此,文章采用理论分析、现场取样实验室参数测定、方案设计、专家会诊等方法,提出了一次支护采用锚网索喷支护,二次支护采用"钢筋混凝土边墙+矿用工字钢顶梁"组合支护,结果表明:采用的锚固方式和支护参数能够有效地控制围岩变形。When a mine material roadway heading passed through a failure zone of the previous small mine, stress concentration of the surrounding rock, poor stability, difficult construction of the mine roadway, high safety danger and other problems occurred. Based on the circumstances, a theoretical analysis, parameter measuring in the site sampling lab, plan design, experts consultation and other methods were applied. A primary support with bolt/steel mesh/anchor/ shotcreting method was provided and a secondary support with ＂reinforced concrete sidewall ＋ mine H steel roof beam＂ combined second support method was applied. The results showed that the anchoring method and support parameters applied could effectively control the deformation of the surrounding rock.

关 键 词：小窑破坏区 采空区巷道 锚固参数 二次支护 

分 类 号：TD353[矿业工程—矿井建设]