深部高应力区大断面切眼支护技术研究

Study on the Support Technology of Large Section Cut in Deep High Stress Area

以2-105工作面为工程背景,设计提出锚网索喷+注浆联合支护技术,有效控制切眼围岩结构产生的变形问题,并且在开采工作现场进行有效应用。通过最终的结果分析可以看出,在大断面切眼掘进工作当中,通过锚网索喷射和注浆工作方法,可以全面提高切眼围岩结构的强度和承载能力,保证矿井的安全回采。

Taking the 2-105 working face as the engineering background,the combined support technology of anchor mesh,cable spraying and grouting is designed and put forward to effectively control the deformation of the surrounding rock structure of the cut hole,and is effectively applied in the mining site.Through the final result analysis,it can be seen that the strength and bearing capacity of the surrounding rock structure of the cut can be comprehensively improved and the safe recovery of the mine can be guaranteed through the anchor mesh cable spraying and grouting methods during the excavation of the large section cut.