基于深浅孔注浆技术的破碎顶板岩层巷道综合治理  

Comprehensive Control of Roadway in Broken Roof Strata Based on Depth Hole and Shallow Hole Grouting Technology

作　　者：陈春慧[1] 宋选民[1] 

机构地区：[1]太原理工大学采煤工艺研究所,山西太原030024

出　　处：《煤矿安全》2016年第4期161-164,共4页Safety in Coal Mines

摘　　要：针对同煤三矿工作面回风巷受采动影响及邻近采空区影响,顶底板移近量大、两帮片帮严重的情况,在分析矿压显现机理及其影响因素的基础上,结合理论分析和现场实测情况,对顶板及煤柱帮提出采用深浅孔注浆的治理方案,并通过FLAC3D软件模拟了回采时及注浆后巷道位移变化情况。结果表明:注浆加固后,巷道总变形量明显减小,顶板下沉量小于400 mm,两帮相对移近量小于300 mm,巷道变形量满足回采期间巷道使用要求。According to the situation of large roof to floor convergence and serious rib spalling of return air roadway influenced by mining and its adjacent goaf in the third coal mine working face in Datong Coal Mine Group. On the base of analyzing the mechanism and its influencing factors of mine pressure behavior,combined with the theory analysis and field measurement,we control the roof and pillar by the method of depth hole combined with shallow hole grouting. FLAC3 Dwas adopted to simulate the changes of the displacement of roadway during mining and after grouting. The results show that after grouting reinforcement,the total deformation of roadway was decreased,the roof subsidence is less than 400 mm,the amount of two- side convergence is less than 300 mm,and the roadway deformation meets the mining requirements.

关 键 词：破碎围岩 注浆加固 数值模拟 深浅孔注浆工艺 

分 类 号：TD323[矿业工程—矿井建设]