Research on Structural Damage Detection Method for Ultra-Deep Power Tunnel Working Wells During Service Period Based on High Frequency Ground Penetrating Radar
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.
ultra-deep working shaftsground penetrating radardamage detectionoperation maintenancepower tunnel
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