周家嘴路越江隧道管片接缝防水技术研究
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摘要
针对上海周家嘴路越江盾构隧道工程防水要求高、隧道纵向变形大等难点,文章采用有限元数值模拟和试验分析等手段,对盾构隧道管片接缝防水技术进行量化分析和研究,确定了接触面应力和闭合压缩力均符合设计防水要求的弹性密封垫方案,并提出了密封垫防水槽位置优化、减少接缝错台量、加强角部防水能力等防水构造措施。结果表明,该弹性密封垫设计方案合理可行,采取的防水技术措施切实有效。
In light of the high requirements of waterproof and large longitudinal deformation of the Zhoujiazui road river-crossing tunnel, a quantitative analysis on waterproof techniques for shield tunnel segment joints was conducted by FEM numerical simulation and experimental analysis, it is found that stress of contact surface and closure compressive force meet the designed waterproof requirements of elastic sealing gasket, the measures of optimizing waterproof groove position of the sealing gasket, reducing joint discloation and strengthening waterproof capability at the corner were proposed.
In light of the high requirements of waterproof and large longitudinal deformation of the Zhoujiazui road river-crossing tunnel, a quantitative analysis on waterproof techniques for shield tunnel segment joints was conducted by FEM numerical simulation and experimental analysis, it is found that stress of contact surface and closure compressive force meet the designed waterproof requirements of elastic sealing gasket, the measures of optimizing waterproof groove position of the sealing gasket, reducing joint discloation and strengthening waterproof capability at the corner were proposed.
引文
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[7]吴炜枫,丁文其,魏立新,杨光华.深层排水盾构隧道接缝防水密封垫形式试验研究[J].现代隧道技术,2016,53(6):190-195.WU Weifeng,DING Wenqi,WEI Lixin,YANG Guanghua.Experimental Study on Joint Waterproofing Gasket Patterns for Deep Sewage Tunnels Excavated by Shield Machines[J].Modern Tunnelling Technology,2016,53(6):190-195.
[2]陆明,杨志豪.深埋输水隧道防水设计[J].中国建筑防水,2012,(6):14-17.LU Ming,YANG Zhihao.Waterproofing Design for Deep Buried Water Tunnel[J].China Building Waterproofing,2012,(6):14-17.
[3]吕帅.不同压缩状态下密封垫的防水性能研究[J].中国建筑防水,2016,(2):13-15.LV Shuai.Study on Waterproofing Performance of Sealing Gasket under Different Compressive State[J].China Building Waterproofing,2016,(2):13-15.
[4]拓勇飞,舒恒,郭小红,等.超高水压大直径盾构隧道管片接缝防水设计与试验研究[J].岩土工程学报,201,35(1):228-231.TUO Yongfei,SHU Heng,GUO Xiaohong,et al.Design and Experimental Study on Waterproof Gasket of Large-diameter Shield Tunnel under Ultra High Water Pressure[J].Chinese Journal of Geotechnical Engineering,2013,35(1):228-231.
[5]钟小春,秦建设,朱伟,等.盾构管片接缝防水材料防水耐久性实验及分析[J].地下空间与工程学报,2011,7(2):281-285.ZHONG Xiaochun,QIN Jianshe,ZHU Wei,et al.Durability Tests and Analysis on the Waterproof Material for Joint Seam of Shield Tunnel[J].Chinese Journal of Underground Space and Engineering,2011,7(2):281-285.
[6]赵明,丁文其,彭益成,等.高水压盾构隧道管片接缝防水可靠性试验研究[J].现代隧道技术,2013,50(3):87-93.ZHAO Ming,DING Wenqi,PENG Yicheng,et al.Experimental Study on the Reliability of Shield Tunnel Segment Joints to Remain Watertight under High Water Pressure[J].Modern Tunnelling Technology,2013,50(3):87-93.
[7]吴炜枫,丁文其,魏立新,杨光华.深层排水盾构隧道接缝防水密封垫形式试验研究[J].现代隧道技术,2016,53(6):190-195.WU Weifeng,DING Wenqi,WEI Lixin,YANG Guanghua.Experimental Study on Joint Waterproofing Gasket Patterns for Deep Sewage Tunnels Excavated by Shield Machines[J].Modern Tunnelling Technology,2016,53(6):190-195.