【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。更多还原

【Abstract】 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.更多还原