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DOI10.3390/w16101349
Hazard Assessment of Debris Flow: A Case Study of the Huiyazi Debris Flow
Guo, Yuntao; Feng, Zhen; Wang, Lichao; Tian, Yifan; Chen, Liang
发表日期2024
EISSN2073-4441
起始页码16
结束页码10
卷号16期号:10
英文摘要The Bailong River Basin is situated at the northeastern edge of the Qinghai-Tibet Plateau and the western transition zone of the Loess Plateau, characterized by steep terrain and heavy rainfall. This area experiences frequent occurrences of debris flows, posing serious threats to towns and construction projects. Focusing on the Huaiyazigou debris flow in the Bailong River Basin, numerical simulations of debris flow processes were conducted using Digital Surface Model (DSM) data with a resolution of 5 m x 5 m for various recurrence periods. The simulation results indicate that the debris flow develops rapidly along the gully after formation, decelerating and beginning to deposit upon reaching the cement plant area near the mouth of the gully, eventually merging into the Bailong River. The primary destructive modes of debris flow disasters encompass impact and burial. When encountering buildings, their flow characteristics manifest as deposition and diversion. A debris flow hazard classification model, based on intensity and recurrence periods, was established according to Swiss and Austrian standards, dividing the hazard into low, medium, and high levels. This method generated a debris flow hazard zone map, offering guidance for risk prevention and monitoring. This research demonstrates that using high-precision Digital Surface Models (DSM) can accurately represent the digital information of debris flow gully terrains and buildings. During the simulation process, it realistically reflects the characteristics of the debris flow movement, allowing for the more precise delineation of hazard zones.
英文关键词Bailong River Basin; debris flow; numerical simulation; hazard assessment
语种英语
WOS研究方向Environmental Sciences & Ecology ; Water Resources
WOS类目Environmental Sciences ; Water Resources
WOS记录号WOS:001231220500001
来源期刊WATER
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/297360
作者单位China University of Geosciences
推荐引用方式
GB/T 7714
Guo, Yuntao,Feng, Zhen,Wang, Lichao,et al. Hazard Assessment of Debris Flow: A Case Study of the Huiyazi Debris Flow[J],2024,16(10).
APA Guo, Yuntao,Feng, Zhen,Wang, Lichao,Tian, Yifan,&Chen, Liang.(2024).Hazard Assessment of Debris Flow: A Case Study of the Huiyazi Debris Flow.WATER,16(10).
MLA Guo, Yuntao,et al."Hazard Assessment of Debris Flow: A Case Study of the Huiyazi Debris Flow".WATER 16.10(2024).
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