厚煤层破碎围岩巷道注浆加固分析

Analysis on Grouting Reinforcement of Broken Surrounding Rock Roadway in Thick Coal Seam

以8614工作面围岩加固为研究背景,采用注浆加固对巷道围岩进行处理,并通过检验巷道注浆加固效果,对比分析加固前后围岩应力和矿压观测结果,确定加固后巷道围岩应力明显下降,顶板和两帮的变形得到了有效控制,可以满足回采工作的要求。

Taking the surrounding rock reinforcement of the 8614 working face as the research background,the surrounding rock of roadway is treated by grouting reinforcement,and by testing the effect of roadway grouting reinforcement,the observation results of surrounding rock stress and mine pressure before and after reinforcement are compared and analyzed.It is determined that the surrounding rock stress of the roadway decreases obviously after reinforcement,the deformation of the roof and the two sides can be effectively controlled,which can meet the requirements of mining work.