Research on Tunnel Detection and Collapse Treatment in Karst Fissure Development Areas

DOI

10.2991/978-94-6463-780-9_50How to use a DOI?

Keywords

Tunnel engineering; Karst fissures; Microseismic monitoring; Roof collapse; Prevention and control measures

Abstract

In China, soluble rock formations are widely distributed, and the unique physical and mechanical properties of filled karst geology are formed under special environmental conditions and geological forces. With the large-scale construction of tunnel projects in karst areas, the issue of surrounding rock collapse disasters and their prevention and control has become increasingly prominent. This paper takes the karst geology of the Liangmaoshan Tunnel on the Rongfu Expressway in Guangxi as the research object. By comprehensively using geological mapping, advanced drilling, microseismic geophysical exploration, and other detection methods, combined with numerical simulation, theoretical analysis, and field measurement techniques, the study investigates the microseismic detection and prediction image analysis of karst and fractured bodies of different scales and spatial positions. For large-scale karst areas, a comprehensive treatment plan of “clay backfilling for waterproofing at the tunnel roof + fine sand filling + foam concrete pumping + advanced large pipe roof + radial grouting” is proposed. The effectiveness of this treatment plan has been verified through subsequent tunnel monitoring, ensuring the safety of tunnel construction.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Zaifeng Yao
AU  - Xiaochuan Hu
AU  - Shuanye Han
AU  - Yaning Wang
AU  - Xiang Lv
PY  - 2025
DA  - 2025/07/03
TI  - Research on Tunnel Detection and Collapse Treatment in Karst Fissure Development Areas
BT  - Proceedings of the 2025 International Conference on Engineering Management and Safety Engineering (EMSE 2025)
PB  - Atlantis Press
SP  - 549
EP  - 557
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-780-9_50
DO  - 10.2991/978-94-6463-780-9_50
ID  - Yao2025
ER  -