Combined application of geophysical measurements in the detection of karst tunnels

Xin Zhang; Yunda Lin; Guixiang Tang

doi:10.1117/12.3057626

28 January 2025 Combined application of geophysical measurements in the detection of karst tunnels

Xin Zhang, Yunda Lin, Guixiang Tang

Author Affiliations +

Proceedings Volume 13506, Sixth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2024); 135063A (2025) https://doi.org/10.1117/12.3057626
Event: Sixth International Conference on Geoscience and Remote Sensing Mapping (ICGRSM 2024), 2024, Qingdao, China

Abstract

The complex geological environment in karst areas often leads to unexpected geological disasters during tunnel excavation due to adverse conditions such as caves and aquifers, posing significant safety hazards to construction projects. Single geophysical exploration methods have limitations and are often inadequate for meeting the demands of actual engineering projects. This paper employs an integrated approach using high-density resistivity, semi-airborne transient electromagnetic (SATEM), and ground-penetrating radar (GPR) methods to conduct geological surveys in a proposed highway tunnel traversing complex karst terrain. The timely acquisition of detailed and comprehensive karst geological data enables accurate identification of the spatial location and distribution of adverse geological features within the tunnel. This approach facilitates the determination of potential karst geological disaster risks and provides a precise design basis for related engineering projects. Verification through actual excavation revealed a medium-sized cave at the geophysical anomaly locations, proving the effectiveness of the integrated geophysical exploration methods and offering a valuable reference for similar tunnel exploration endeavors.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xin Zhang, Yunda Lin, and Guixiang Tang "Combined application of geophysical measurements in the detection of karst tunnels", Proc. SPIE 13506, Sixth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2024), 135063A (28 January 2025); https://doi.org/10.1117/12.3057626

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