煤矿深部复合地层TBM掘进巷道围岩稳定性控制工程实践  

Engineering Practice of Surrounding Rock Stability Control of Deep Composite Strata TBM Tunneling Roadway in Coal Mines

作　　者：刘震宇 唐彬[1] 胡阳[2] 张大欢[2] 徐彬[2] 侯俊领 LIU Zhenyu;TANG Bin;HU Yang;ZHANG Dahuan;XU Bin;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16期191-196,共6页Science & Technology Information

基　　金：安徽省自然科学基金面上项目资助(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资助(项目编号:SKLMRDPC20ZZ04);安徽高校自然科学研究重大项目资助(项目编号:KJ2021ZD0049)。

摘　　要：为探究深部复合地层在全断面隧道掘进机(Tunnel Boring Machine,TBM)掘进巷道时围岩稳定性控制机理,以淮南矿区某深部岩石巷道为背景,在同等支护条件下,基于Flac^(3D)数值模拟软件对硬岩、软弱岩层、复合岩层建立数值模型,通过分析位移云图、应力云图及围岩塑性区的分布演化规律,优化TBM掘进和支护方案。通过围岩变形和锚杆轴力监测,结合数值模拟和现场实测结果,得出复合岩层的位移、应力云图及塑性区出现明显的不对称性,在复合岩层中的软弱岩层应加大支护力度。In order to explore the stability control mechanism of the surrounding rock of Tunnel Boring Machine(TBM)tunneling roadway in deep composite stratas,a deep rock roadway in the Huainan Mining area is taken as the background,and the numerical model of hard rock,soft rock strata and composite rock strata is established based on the Flac^(3D) numerical simulation software under the same support conditions.TBM excavation and support scheme is optimized by analyzing the distribution and evolution law of the displacement cloud map,stress cloud map and the plastic zone of the surrounding rock.Through the monitoring of the deformation of the surrounding rock and the axial force of the bolt,combined with the results of numerical simulation and field measurement,it is concluded that there is obvious asymmetry in the displacement,stress cloud diagram and plastic zone of the composite rock formation,and the weak rock strata in the composite rock strata should be strengthened.

关 键 词：深部复合地层 Flac^(3D)数值模拟 围岩稳定 工程实践 

分 类 号：TD35[矿业工程—矿井建设]