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 FLAC3D 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.
作者
张弘
Zhang Hong(Shanxi Coking Coal Fenxi Mining Group Liuwan Coal Mine,Shanxi,032300)
出处
《当代化工研究》
2019年第7期136-137,共2页
Modern Chemical Research
关键词
全断面注浆
应力
围岩变形
注浆参数
full-section grouting
stress
surrounding rock deformation
grouting parameters
