盾构隧道结构健康监测系统设计及若干关键问题的探讨

发布时间：2018-04-09 13:05

本文选题：盾构隧道　切入点：结构健康监测　出处：《现代隧道技术》2017年01期

【摘要】：盾构隧道运营期一般长达50~100a,随着越来越多的跨江、大埋深、大直径、长距离盾构隧道的建成与投入运营,盾构隧道结构健康监测系统已得到高度的重视。文章在对隧道结构健康监测系统调研的基础上,结合盾构隧道的特点,给出了盾构隧道结构健康监测系统的定义,即以盾构隧道结构长期监测为基础,以数据分析和力学分析为主要手段,以验证关键设计参数与指标、结构服役性能评价与预警、合理配置养护资源为主要目标的数据采集、管理与分析综合系统;提出了盾构隧道结构健康监测系统组成,包括:数据采集、传输与存储子系统,数据集成、可视化与预警子系统,数据分析与评价子系统;详细介绍了各个子系统的内容与设计方法;讨论了监测内容与位置的选取、传感器选型、数据综合集成、健康监测可视化、结构健康评价方法以及与维护养护的关系等关键问题及其在上海长江隧道等实际工程中的处理方式;最后对盾构隧道结构健康监测系统的设计与实施提出了一些具体的建议。
[Abstract]:Shield tunnel operation generally up to 50~100a, with more and more cross river, large depth, large diameter, long distance shield tunnel is built and put into operation, the health monitoring system of shield tunnel structure has attracted considerable attention. In this paper based on tunnel structure health monitoring system research, combined with the characteristics of shield tunnel, definition given the health monitoring system of shield tunnel, the tunnel structure based on long-term monitoring, data analysis and mechanical analysis as the main means to verify the key design parameters and indicators, service performance evaluation and early warning, data acquisition and rational allocation of maintenance resources as the main target, comprehensive management and analysis system is put forward; composition and structure of shield tunnel health monitoring system includes: data acquisition, transmission and storage subsystem, data integration, visualization and early-warning subsystem, data analysis and evaluation System; introduces the contents and design methods of various subsystems; discusses the selection, monitoring content and position sensor selection, data integration and visualization, health monitoring, structural health evaluation methods and maintenance the relationship between key problems and treatment methods in practical engineering in the Shanghai Yangtze River tunnel; and finally puts forward some specific recommendations for design and implementation of shield tunnel structure health monitoring system.

【作者单位】：同济大学土木工程防灾国家重点实验室;同济大学岩土及地下工程教育部重点实验室;同济大学土木工程学院地下建筑与工程系;上海市隧道工程轨道交通设计研究院;
【基金】：国家自然科学基金项目(51478341) 国家973重点基础发展计划项目(2011CB013800) 中央高校基本科研业务费专项资金项目
【分类号】：U455.43

【参考文献】