高地应力三软巷道围岩锚注加固技术

Bolting and Grouting Reinforcement Technology for Surrounding Rock of Three Soft Roadway with High Ground Stress

结合山西乡宁焦煤集团申南凹焦煤有限公司集中回风大巷围岩破坏情况,分析了采用锚注加固支护的技术可行性,探讨了锚注加固技术设计参数的选择要点。其在447 m集中回风巷道整修施工中的应用证明此项联合支护技术为受高地应力影响的三软围岩巷道的最佳支护方式。

Combined with the damage of the surrounding rock of centralized return air roadway in Shennanwa Coking Co.Ltd.of Xiangning Coking Coal Group of Shanxi,this paper analyzed the technical feasibility of bolting and grouting supporting system and discussed the main points for selecting design parameters of bolting and grouting reinforcement technology.Its application in the renovation of 447 m centralized air return roadway proved that the combined support technology is the best support way for the three soft surrounding rock roadway under the influence of high ground stress.