新街煤矿长距离斜井TBM施工管片结构力学性能的影响因素分析
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摘要
根据内蒙古神华新街台格庙煤矿区TBM斜井施工过程中面临的高水压、大埋深、地质条件复杂等现状,采用非线性梁弹簧模型,探讨了埋深、水深、管片厚度、接头抗弯刚度及二衬厚度等因素对斜井管片结构受力特性、安全系数的影响,并提出了有关施工技术措施。
The status of high pressure,large buried depth,and complex geological conditions exist in the construction process of TBM inclined shaft in Shenhua Xinjie Taigemiao coal field in Inner Mongolia.Nonlinear beam-spring model is used to investigate the effects of buried depth,water head height,segment thickness,joint bending stiffness and secondary lining thickness on structure load characteristics and safety coefficient of shaft segments and related construction technical measures are put forward.
The status of high pressure,large buried depth,and complex geological conditions exist in the construction process of TBM inclined shaft in Shenhua Xinjie Taigemiao coal field in Inner Mongolia.Nonlinear beam-spring model is used to investigate the effects of buried depth,water head height,segment thickness,joint bending stiffness and secondary lining thickness on structure load characteristics and safety coefficient of shaft segments and related construction technical measures are put forward.
引文
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[4]乔文俊.TBM工法在新街台格庙矿区斜井井筒掘进技术经济适应性研究[J].内蒙古煤炭经济,2003(3):2-5.
[5]赵德安,陈志敏,蔡小林,等.中国地应力场分布规律统计分析[J].岩石力学与工程学报,2007,26(6):1265-1271.ZHAO D A,CHEN Z M,CAI X L,et al.Analysis of distribution rule of geostress in China[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(6):1265-1271.
[6]郭瑞,何川,封坤,等.大断面水下盾构隧道管片接头抗弯刚度及其对管片内力影响研究[J]中国铁道科学,2013,34(5):46-53.GUO R,HE C,FENG K,et al.Bending stiffness of segment joint and its effects on segment internal force for underwater shield tunnel with large crosssection[J].China Railway Science,2013,34(5):46-53.