综采面回采巷道二次注浆加固应用分析

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英文篇名：Application Analysis of Secondary Grouting Reinforcement in Mining Roadway of Fully Mechanized Coal Face 作者：张弘 英文作者：Zhang Hong;Shanxi Coking Coal Fenxi Mining Group Liuwan Coal Mine; 关键词：全断面注浆 ; 应力 ; 围岩变形 ; 注浆参数 英文关键词：full-section grouting;;stress;;surrounding rock deformation;;grouting parameters 中文刊名：ZJTY 英文刊名：Modern Chemical Research 机构：山西焦煤汾西矿业集团公司柳湾煤矿; 出版日期：2019-08-01 14:18 出版单位：当代化工研究 年：2019 期：No.43 语种：中文; 页：ZJTY201907089 页数：2 CN：07 ISSN：10-1435/TQ 分类号：141-142

摘要

以某矿1307工作面为研究对象,采用FLAC3D分别对巷道无支护,采用锚网索支护以及全断面注浆、帮部注浆和顶板注浆三种注浆方式进行数值模拟,通过围岩应力等值线图和基点围岩位移变化表明巷道支护后采用全断面注浆效果最优。并根据工作面实际地质条件合理设计了注浆参数。
        Taking 1307 working face of a mine as the research object, three grouting methods, i.e. bolt-mesh-cable support, full-section grouting,side grouting and roof grouting, are adopted to simulate the roadway, and FLAC3 D method is simulated the roadway without support respectively.Through the surrounding rock stress contour map and the displacement change of the surrounding rock at the base point, it is shown that the full-section grouting effect is optimal after roadway support, and the grouting parameters are reasonably designed according to the actual geological conditions of the working face.

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