水下盾构隧道耐久性与全生命周期设计  

The durability of underwater shield tunnel and its life-cycle design

作　　者：王剑宏 常洪雷 刘健 小泉淳 WANG Jianhong;CHANG Honglei;LIU Jian;KOIZUMI Atsushi(School of Qilu Transportation,Shandong University,Jinan 250002,Shandong,China;Waseda University,Tokyo 169-8555,Japan)

机构地区：[1]山东大学齐鲁交通学院,山东济南250002 [2]早稻田大学,东京169-8555

出　　处：《隧道与地下工程灾害防治》2020年第2期1-13,共13页Hazard Control in Tunnelling and Underground Engineering

摘　　要：随着国家的大规模基础设施发展,水下隧道建设需求日益增大,但水下隧道的建设与运维难度较大,需要综合考虑设施的耐久性、进行全生命周期设计。通过分析东京湾横断公路隧道的防水及耐久性措施,为水下大直径隧道建设提出"多重防水、多方防腐、全生命周期设计"的综合耐久性对策;建立以性能和成本为评估指标的全生命周期设计方法,并通过计算评价某海底隧道的不同方案,揭示建设初期充分考虑耐久性、实施全生命周期设计的方案最有利,验证了全生命周期设计方法的有效性。通过构建兼顾经济、安全及环境的全生命周期设计理论体系,可为水下隧道的合理规划设计、科学建造养护提供有力的基础支撑。With the development of the country’s large-scale infrastructure,the demand for underwater tunnel construction is increasing;however,regarding the construction,operation and maintenance of underwater tunnel are more difficult,the tunnel durability needs to be concerned as well as the life-cycle design.This paper investigated the waterproof and durability measures of the Tokyo Bay Transverse Highway Tunnel,and proposed a comprehensive durability strategy of"multiple waterproof,multi-anticorrosion,and life-cycle design"for the construction of large diameter underwater tunnel.In addition,a life-cycle design method was established with the performance and cost as indicators,and was applied to evaluating of a submarine tunnel under four construction and maintenance plans.As the result,it was clarified that the plan of the high durable tunnel in the initial stage was the most beneficial,and the life-cycle design method was effective.Conclusively,the rational planning and design,scientific construction and maintenance of underwater tunnels could be foundationally supported by development of a life-cycle design system accounting for the economy,safety and environment.

关 键 词：水下隧道 耐久性 多重防水 多方防腐 全生命周期设计 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]