盾构隧道管片接缝防水体系演化历程与展望  

Evolution and Prospects of Shield Tunnel Joints and Segment Waterproofing Systems

作　　者：肖明清[1,2] 谢宏明[2] 王士民[2] 钟元元 XIAO Mingqing;XIE Hongming;WANG Shimin;ZHONG Yuanyuan(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,Hubei,China;Laboratory of Transportation Tunnel Engineering,Ministry of Education,Southwest Jiaotong University,Chengdu 610031,Sichuan,China;Jiangyin Haida Rubber and Plastic Co.,Ltd.,Jiangyin 214424,Jiangsu,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063 [2]西南交通大学交通隧道工程教育部重点实验室,四川成都610031 [3]江阴海达橡塑股份有限公司,江苏江阴214424

出　　处：《隧道建设（中英文）》2021年第11期1891-1902,I0079-I0090,共24页Tunnel Construction

基　　金：国家自然科学基金(52178398,51991394);高铁联合基金重点项目(U1734205)。

摘　　要：为应对不断变化的防水需求,接缝防水体系经过不断演化,产生了多种布置方式,但当前业内对各种布置形式的接缝防水体系尚未有统一的描述。为便于统一指代,调研分析国内各种盾构隧道管片接缝防水的发展过程,针对盾构隧道管片接缝防水体系特征提出代系划分方法,并详细阐述各代系的构造特征及主要适用范围,具体包括3代:采用单道三元乙丙橡胶密封垫的第1代接缝防水体系,以单道三元乙丙橡胶+遇水膨胀弹性体形成“一主一辅”的第2代接缝防水体系,以双道三元乙丙橡胶密封垫为主体的第3代接缝防水体系。最后,结合目前大型水下盾构隧道的建设需求,从防水体系韧性、极端工况下防水体系及密封垫受力状态下耐久性等方面提出接缝防水体系今后的发展趋势。To meet changing waterproof demands,joint waterproofing systems have evolved and produced a variety of layout modes,but there is no unified description of a joint waterproofing system of various layout forms in the industry.To unify this topic,the evolution of various shield tunnel segment joint waterproofing systems in China is investigated and analyzed,and the structural characteristics and main application scope of each system generation are elaborated on.The existing joint waterproofing systems have been systematically classified:the traditional first generation joint waterproofing system used single ethylene propylene diene monomer(EPDM)elastic sealing gaskets,the second generation adopted a single EPDM gasket and water swelling rubber,and the third generation adopted double EPDM gaskets with or without water swelling rubber.Finally,combined with the current construction needs of large-scale underwater shield tunnels,the developmental trends of joint waterproofing systems in the future are put forward with respect to the toughness of the waterproofing system,extreme environmental conditions,and durability of the gasket under stress.

关 键 词：盾构隧道 管片接缝 防水体系 防水代系 密封垫 高水压 

分 类 号：U451[建筑科学—桥梁与隧道工程]