基于光纤传感的外部施工对排水管道影响研究  

Impact of External Construction on Drainage Pipelines Based on Fiber Optic Sensing Technology

作　　者：郑娜 梁建煦 ZHENG Na;LIANG Jian-xu(China Municipal Engineering North Design&Research Institute Co.,Ltd.,Tianjin 300074,China;Tianjin Drainage Management Center,Tianjin 300074,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300074 [2]天津市排水管理事务中心,天津300074

出　　处：《中国市政工程》2025年第1期49-52,145,共5页China Municipal Engineering

摘　　要：近年来,我国地下空间开发强度逐渐增大,可利用的地下空间愈发紧张。在距离地下排水管道较近的位置进行施工,如土方开挖、顶管施工、盾构施工等,改变了排水管道周边土体环境,均可能引起管道变形,进而严重威胁到排水管道的安全运行。因此,在外部工程施工时,对排水管道进行安全监测,就显得尤为重要。在天津市某顶管施工过程中,对现状排水管道的结构微变形实施监测,首次运用光纤传感监测技术,结合岩土、排水、结构等多专业,对地下施工作业给排水管道带来的影响及其安全性进行了研究。With increasing underground space utilization in China,construction activities near drainage pipelines(e.g.,earth excavation,pipe jacking,and shield tunneling)pose risks of soil disturbance and pipeline deformation,threatening operational safety.This study pioneers the application of fiber optic sensing technology to monitor structural micro-deformations in existing drainage pipelines during a pipe jacking project in Tianjin.By integrating geotechnical,hydraulic,and structural analyses,the research evaluates the impacts of underground construction on pipeline integrity.The methodology establishes a multidisciplinary framework for real-time safety monitoring and risk mitigation.

关 键 词：外部施工 排水管道 光纤传感 微变形 安全运行 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]