高强锚注支护技术在破碎围岩巷道围岩控制中的应用  

Application of High-strength Anchor Grouting Support Technology in Surrounding Rock Control of Broken Surrounding Rock Roadways

作　　者：焦栓太 JIAO Shuantai(Zhaozhuang Coal Industry Co.,Ltd.,Shanxi Jinneng Holding Equipment Manufacturing Group,Changzhi 046000,Shanxi,China)

机构地区：[1]山西晋能控股装备制造集团赵庄煤业有限责任公司,山西长治046000

出　　处：《能源与节能》2024年第4期276-280,共5页Energy and Energy Conservation

摘　　要：山西A煤矿13089工作面运输顺槽掘进过F16断层,断层影响区域产生的破碎围岩导致巷道支护后围岩失稳。采用数值模拟研究支护后围岩应变演化规律,研究结果可知,顶板来压30 d时巷道围岩失稳,顶板来压40 d时上部断层区域垮落形成沿着断层倾角方向空腔。介绍了高强锚注支护技术工艺,对支护后的巷道进行顶板观测,观测结果可知顶板30 d最大位移量60 mm,巷道整体稳定。The transportation gateway excavation of 13089 working face in Shanxi A Coal Mine passed through the F16 fault,and the fractured surrounding rock generated in the affected area of the fault caused instability of the surrounding rock after roadway support.Using numerical simulation to study the strain evolution law of surrounding rock after support.The research results show that the surrounding rock of the roadway becomes unstable when the roof is compressed for 30 d,and when the roof is compressed for 40 d,the upper fault area collapses and forms a cavity along the dip direction of the fault.The technology of high-strength anchor grouting support was introduced,and the roof observation of roadway after support was carried out.The observation results show that the maximum displacement of the roof in 30 d is 60 mm,and the roadway is stable as a whole.

关 键 词：破碎围岩 数值模拟 高强组合支护 效果考察 

分 类 号：TD353[矿业工程—矿井建设]