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ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Geohazards and Georisks
Volume 12 - 2024 |
doi: 10.3389/feart.2024.1473444
Development characteristics and hazard analysis of debris flow along Emei to Mianning section of Chengdu-Kunming Railway
Provisionally accepted- 1 School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu, China
- 2 Sichuan Mianjiu Expressway Co., Ltd, Mianyang, China
- 3 Sichuan Expressway Construction & Development Group Co., Ltd, Chengdu, China
- 4 Sichuan Institute of Geological Engineering Investigation Group, Chengdu, Sichuan Province, China
The geological disasters of Emei to Mianning section of Chengdu-Kunming railway located in southwestern China occur frequently, and a large number of debris flow gullies are distributed along the line. Debris flows often cause damage to the railway and highway along the line, which threaten the safety operation of the original line and the double-track line. Along the railway , 53 debris flow gullies with debris flow outbreak risk are analyzed by means of field survey, remote sensing interpretation and numerical simulation, their developmental characteristics was judged according to the code. The results are used for numerical simulation of debris flow to further determine the movement characteristics and the accumulation range of debris flow. Combined with high-definition satellite images to analyze the form of railway passing from the mouth of the ditch, further combined with the simulation results to determine the impact on the safe operation of Chengdu-Kunming railway when the debris flow erupts. Finally, comprehensive analysis proposes corresponding disaster prevention and mitigation recommendations and validates the prevention and control effect of the prevention and control works.
Keywords: Chengdu-Kunming railway, Debris flow, numerical simulation, Disaster prevention and mitigation, development characteristics and hazard
Received: 31 Jul 2024; Accepted: 30 Aug 2024.
Copyright: © 2024 Enxi, Zicheng, Liyong, Hao, Chaodong, Zhuang, Bin, Changmao, Mengfei and Jun. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Tian Liyong, Sichuan Mianjiu Expressway Co., Ltd, Mianyang, China
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