TBM掘进煤矿深井巷道支护方案优化实践  

Optimization Practice of Deep Mine Roadway Support Scheme in TBM Mining

作　　者：张风林 唐彬[1] 沈仁为[2] 李宏亮 张鹏涛[2] 程晋轶 刘震宇 侯俊领 ZHANG Fenglin;TANG Bin;SHEN Renwei;LI Hongliang;ZHANG Pengtao;CHENG Jinyi;LIU Zhenyu;HOU Junling(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan,Anhui Province,232001 China;Huainan Mining Industry(Group)Co.,Ltd.,Huainan,Anhui Province,232001 China;School of Vanadium and Titanium,Panzhihua University,Panzhihua,Sichuan Province,617000 China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]淮南矿业(集团)有限责任公司,安徽淮南232001 [3]攀枝花学院钒钛学院,四川攀枝花617000

出　　处：《科技资讯》2024年第14期103-107,共5页Science & Technology Information

基　　金：安徽省自然科学基金面上项目(项目编号:2208085ME118);深部煤矿采动响应与灾害防控国家重点实验室自主课题项目(项目编号:SKLMRDPC20ZZ04);安徽高校自然科学研究重大项目(项目编号:KJ2021ZD0049)。

摘　　要：针对煤矿深井巷道TBM掘进施工中围岩支护方案少有规范可供参考,支护施工须同时兼顾支护强度和支护施工速度等问题,根据煤矿深部地层岩层物理力学性质和地应力场参数等工程地质条件,开展TBM掘进巷道数值模拟,获得不同支护方案下围岩应力场、位移场演化规律,优选合理支护方案,并在TBM掘进煤矿深井巷道工程实践中应用。工程现场监测数据表明,巷道开挖后第70天,顶板下沉量和两帮收敛量停止增加,锚杆轴力停止增长,所采用的支护方案满足巷道围岩稳定性控制的需要。In response to the lack of standardized rock support schemes for TBM excavation construction in deep coal mine tunnels,and the need to simultaneously consider support strength and construction speed,numerical simulations of TBM excavation tunnels were conducted based on the physical and mechanical properties of the deep geological strata and the parameters of the geostress field in coal mines.The evolution laws of the rock stress field and displacement field under different support schemes were obtained,and a reasonable support scheme was selected and applied in TBM excavation of deep coal mine tunnels.The on-site monitoring data of the project shows that on the 70th day after the excavation of the tunnel,the subsidence of the roof and the convergence of the two sides stopped increasing,and the axial force of the anchor rod stopped increasing.The support scheme adopted meets the needs of controlling the stability of the surrounding rock of the tunnel.

关 键 词：煤矿 岩巷 数值模拟 支护方案 现场监测 

分 类 号：TD35[矿业工程—矿井建设]