基于高频探地雷达的服役期超深电力隧道工作井结构损伤检测方法研究
Research on Structural Damage Detection Method for Ultra-Deep Power Tunnel Working Wells During Service Period Based on High Frequency Ground Penetrating Radar
汤敏吉 1王玲 1吴辰斌 1张永康 1周思鸣 1唐亘跻 2任怡睿1
作者信息
- 1. 国网上海市电力公司电缆公司,上海 201199
- 2. 同济大学,上海 200092
- 折叠
摘要
软土地区的超深电力隧道工作井承受着巨大的水土压力和荷载,同时面临着复杂的水土环境与电磁干扰等多重不利因素,采用常规巡查手段很难在早期发现工作井结构的损伤与病害,从而给工作井结构的正常服役和安全带来了极大的挑战.以上海杨树浦电厂越江隧道1号工作井为研究对象,采用同济大学自主研发的高频探地雷达对该结构长期存在的渗漏问题进行了全面细致的检查.通过对雷达数据进行去噪和解析,分析了结构病害的产生原因及后续的封堵和修复措施.研究结果表明,该高频探地雷达能够较好地捕捉到地下结构的脱空腔体与地下水分布情况,为后期的维修工作指明了方向,还可为今后类似的结构病害检测提供借鉴.
Abstract
Ultra-deep power tunnels in soft soil areas endure significant hydrostatic pressure and loads,facing complex hydrological and electromagnetic environments.Conventional inspection methods often fail to detect structural damage and defects in the early stages,posing significant challenges to the normal operation and safety of these structures.This study focuses on the No.1 working shaft of the Yangshupu Power Plant's cross-river tun-nel in Shanghai.Utilizing a high-frequency ground penetrating radar developed by Tongji University,a compre-hensive and detailed inspection of long-term leakage in the structure was conducted.The radar data was processed for noise reduction and analysis,identifying the causes of structural damage and proposing subsequent sealing and repair measures.The research demonstrates that high-frequency ground penetrating radar effectively detects voids and underground water distribution in underground structures,providing guidance for future maintenance and serv-ing as a reference for similar structural damage detection in the future.
关键词
超深工井/探地雷达/损伤检测/运营维护/电力工井Key words
ultra-deep working shafts/ground penetrating radar/damage detection/operation maintenance/power tunnel引用本文复制引用
出版年
2024
NETL
NSTL
万方数据