Mechanism analysis and dynamic simulation of landslide-generated debris flow influenced by forest fire prevention road | |
Xiang, Wen1,2; Ouyang, Chaojun1,2; An, Huicong2; Wang, Fulei1,2; Yang, Weibin1,2 | |
刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT |
2024-03-01 | |
卷号 | 83期号:3页码:13 |
关键词 | Landslide Debris flow Numerical simulation Unstable slope Forest fire prevention road |
ISSN号 | 1435-9529 |
DOI | 10.1007/s10064-024-03567-3 |
英文摘要 | Building the forest fire prevention road in mountainous areas is an effective means to prevent forest fire from spreading wantonly. Nevertheless, adverse influences are that the construction of these roads has destroyed the inherent stability of the original slope, resulting a large number of unstable slopes appear in the catchment, which could trigger human-generated landslides and debris flows. On June 17, 2022, a landslide-generated debris flow occurred in the Longjiagou catchment, Mianning County, Sichuan Province. The initial landslide that induced this debris flow is one of the unstable slopes on the forest fire prevention road. After the debris flow event, we conducted a detailed on-site investigation of the Longjiagou catchment. Many unstable slopes have been found near the road, and the width of cracks at the rear edge of some unstable slopes has exceeded 10 cm. This is already a very dangerous precursor signal for landslides or debris flow. And several soil samples were collected in the catchment to test the hydraulic conductivity and particle size distribution of soil at different locations. Combined with multi-source data, we comprehensively analyzed the cause and mechanism of the disaster. The dynamic process modeling framework of earth-surfaced flow-Massflow-was adopted to simulate the dynamic process of the debris flow to support the quantitative analysis of this disaster. The results show that the simulation results are basically consistent with the actual situation. Based on field reconnaissance and numerical simulation, the mechanism of debris flow is comprehensively analyzed, which can provide important insights and guidance for the prediction and prevention of such debris flow disasters. |
资助项目 | National Outstanding Youth Science Fund Project of National Natural Science Foundation of China |
WOS关键词 | MOTION |
WOS研究方向 | Engineering ; Geology |
语种 | 英语 |
出版者 | SPRINGER HEIDELBERG |
WOS记录号 | WOS:001161557300001 |
资助机构 | National Outstanding Youth Science Fund Project of National Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/57874] |
专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
通讯作者 | Ouyang, Chaojun |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm IMHE, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China |
推荐引用方式 GB/T 7714 | Xiang, Wen,Ouyang, Chaojun,An, Huicong,et al. Mechanism analysis and dynamic simulation of landslide-generated debris flow influenced by forest fire prevention road[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2024,83(3):13. |
APA | Xiang, Wen,Ouyang, Chaojun,An, Huicong,Wang, Fulei,&Yang, Weibin.(2024).Mechanism analysis and dynamic simulation of landslide-generated debris flow influenced by forest fire prevention road.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,83(3),13. |
MLA | Xiang, Wen,et al."Mechanism analysis and dynamic simulation of landslide-generated debris flow influenced by forest fire prevention road".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 83.3(2024):13. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论