地面注浆加固异常地质构造带机理分析与实践  

Mechanism analysis andpractice of ground grouting reinforcing to geological abnormals structural belts

作　　者：孟晓洁[1] 姚直书[1] 俞刚 李军要[1] 

机构地区：[1]安徽理工大学土木建筑学院,安徽省淮南市232001 [2]上海民防建筑研究设计院有限公司,上海市徐汇区200032

出　　处：《中国煤炭》2011年第7期64-66,共3页China Coal

摘　　要：介绍了地面注浆加固异常地质构造带作用机理,对地面注浆加固后的现场岩芯样进行了表观分析和抗压强度试验;同时结合扫描电镜观测了岩芯样微观结构,分析了地面注浆对异常地质构造带的加固效果。分析结果表明,采取地面注浆加固地质异常构造带,不但可以降低异常体区域裂隙率,防止突水,而且可以加强巷道顶底板岩体力学性质,增强围岩的自承载能力。This paper introduces the mechanism of ground grouting reinforcing to abnormal geological structural belts,based upon the compressive strength experiment and the appearance analysis of that site＇s core sample,tends to adopt the SEM to make a study on the pore structure of sample,and made an analysis of the reinforcement effect.The results indicate that ground grouting reinforcing could not only reduce the fissure rate of the abnormal areas,rule out the possibility of floods,but also strengthen the mechanical property of the rock mass on the roof and floor in roadway,increase the self-bearing capacity of the surrounding rock.

关 键 词：地面预注浆 异常地质构造带 扫描电镜 

分 类 号：TD353.8[矿业工程—矿井建设]