摘要
为研究深井煤矿TBM组装硐室围岩破坏机理和优化其支护方案,以张集煤矿TBM组装硐室施工为工程背景,建立块体离散单元法数值模型,开展数值模拟,分析TBM组装硐室围岩变形破坏机理;基于现场监测数据与数值模拟结果,揭示TBM组装硐室变形破坏机理,采用了以全锚索支护和硬化底板为主的组装硐室修护与支护优化方案。结果表明:选用的组装硐室支护优化方案有效控制了围岩破坏和变形,且施工工艺简单,对TBM组装、始发工作影响较小。
In order to study the failure mechanism of surrounding rock of TBM assembly chamber in deep coal mine and optimize its support scheme, taking the construction of TBM assembly chamber in Zhangji Coal Mine as the engineering background, the numerical model of block discrete element method was established, and the numerical simulation was carried out to analyze the deformation and failure mechanism of surrounding rock of TBM assembly chamber. Based on the field monitoring data and numerical simulation results, the deformation and failure mechanism of TBM assembly chamber is revealed, and the optimization scheme of assembly chamber repair and support is adopted, which is mainly composed of full anchor support and hardened floor.The results show that the optimized support scheme of assembly chamber effectively controls the damage and deformation of surrounding rock, and the construction technology is simple, which has little impact on TBM assembly and launching.
作者
黄志鸿
唐彬
刘子默
程松
陈旭之
孙长红
HUANG Zhihong;TANG Bin;LIU Zimo;CHENG Song;CHEN Xuzhi;SUN Changhong(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,China;State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines,Anhui University of Science and Technology,Huainan 232001,China;National Engineering Technology Research Institute of Coal Mining,Huainan 232001,China)
出处
《煤矿安全》
CAS
北大核心
2022年第2期104-111,共8页
Safety in Coal Mines
基金
国家自然科学基金资助项目(51804006)
深部煤矿采动响应与灾害防控国家重点实验室自主课题资助项目(SKLMRDPC20ZZ04)
安徽理工大学2020年研究生创新基金资助项目(2020CX2026)。
