Research on the Method of Unfavorable Geology Exploration in Spring Sensitive Area Based on Fiber Optic Micromotion
Traditional urban surface detection methods suffer from limited observation space,data interference,and signal extraction difficulties,necessitating the search for new detection methods.Fiber optic microseismic detection technology offers strong anti-interference capability,high site adaptability,efficient data collection,and minimal impact on the surrounding environment,making it ideal for urban settings.This study,using a shield tunnel section in Jinan as a case,applied fiber optic microseismic detection technology to collect data and perform inversion imaging.It successfully identified unfavorable geological conditions in the shield tunnel section,detected rock fragmentation,and delineated the distribution of weak interfaces,thus realizing the"turning noise into source"and scientific utilization of urban random noise.