甬舟铁路金塘海底隧道结构健康监测方案研究  

Research on Structural Health Monitoring Scheme of Jintang Subsea Tunnel on Yongzhou Railway

作　　者：唐雄俊[1,2] 毛优达 孙州 TANG Xiongjun;MAO Youda;SUN Zhou(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China;National and Local Joint Engineering Research Center for Underwater Tunnel Technology,Wuhan 430063,China;Zhoushan Railway Construction Center,Zhoushan 316000,China;Tongyan Civil Engineering Science and Technology Co.,Ltd.,Shanghai 200092,China;Shanghai Engineering Research Center of Underground Infrastructure Detection and Maintenance Equipment,Shanghai 200092,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063 [2]水下隧道技术国家地方联合工程研究中心,武汉430063 [3]舟山市甬舟铁路建设指挥部,浙江舟山316099 [4]上海同岩土木工程科技股份有限公司,上海200092 [5]上海地下基础设施安全检测与养护装备工程技术研究中心,上海200092

出　　处：《铁道标准设计》2021年第10期189-194,共6页Railway Standard Design

基　　金：国家重点研发计划课题(2016YFC0802205);山东省重点研发计划(重大科技创新工程)(2019JZZY010428)。

摘　　要：甬舟铁路金塘海底隧道是目前国内最长的水下隧道,具有大直径、长距离、高水压、地中对接、土岩复合地层以及海床演变复杂、冲淤幅度大等显著特点。结合该隧道穿越的水文地质条件以及安全运营需求,确定管片外部土压力、水压力、收敛变形、钢筋锈蚀等8个健康监测项目。根据盾构隧道所处的地质条件、水压等级、海床冲淤幅度、地中对接等不同部位,分别选取11个监测断面和6个沉降监测区段,制定各监测项目的监测方法、安装要求和适应长隧道的光纤传输技术方案。其监测数据不仅为本隧道的结构安全运营提供重要数据支撑,同时也为其他海底隧道类似工程提供借鉴参考。The Jintang Subsea Tunnel on the Ningbo-Zhoushan Railway is currently the longest underwater tunnel in China.It has the characteristics of large diameter,long distance,high water pressure,ground connection,soil-rock composite strata,complex seabed evolution,and large erosion and silting range.8 health monitoring items are determined in this paper,including external earth pressure,water pressure,convergence deformation,and steel corrosion of the segment based on the hydrogeological conditions and safe operation requirements of the tunnel.11 monitoring sections and 6 subsidence monitoring sections are selected respectively according to the geological conditions of the shield tunnel,the level of water pressure,the extent of seabed erosion and siltation and the docking in the ground.Monitoring methods for each monitoring item,installation requirements and technical solutions for long tunnel optical fiber transmission are formulated.The monitoring data not only provide important data support for the safe operation of the tunnel's structure,but also provide reference for other similar projects in subsea tunnels.

关 键 词：海底隧道 健康监测 测点布置 监测方法 数据采集 

分 类 号：U459.5[建筑科学—桥梁与隧道工程] U456.3[交通运输工程—道路与铁道工程]