Calculation of Early Warning Index of Mountain Torrent Disaster in Yushe County

被引：0
|
作者：
Yang, Xuyang [1 ]
Yan, Dandan [1 ]
Sun, Lingling [1 ]
机构：
[1] Hebei Univ Engn, Coll Water Conservancy & Hydroelect, Handan 056038, Peoples R China
来源：
SUSTAINABLE DEVELOPMENT OF WATER RESOURCES AND HYDRAULIC ENGINEERING IN CHINA | 2019年
关键词：
Mountain torrent disaster; Critical rainfall; Rainfall warning index; Yushe County;
D O I：
10.1007/978-3-319-61630-8_29
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
According to the investigation of the disaster of mountain torrents in Yushe County, the disaster water level of the flood disaster prevention objective is determined with regard to the disaster situation of the village and the historical flood investigation of the small watershed. According to the "Shanxi Hydrological Calculation Manual" analysis of a design storm, combined with the actual situation in Shanxi, analysis determined the warning period and soil moisture content. Based on the hypothesis of rainstorm and flood of the same frequency, the same frequency anti-push method is used to reverse the disaster flow from the designed storm flood. The designed rainfall is the early warning rainfall in the early warning period, that is, the small rainfall warning index (immediate transfer of indicators). Through the analysis and calculation, the rainfall warning index of 0.5, 1 and 1.5 h of Yuhong County flood disaster prevention objective is determined, and the rationality of an early warning index is analyzed. The results show that the early warning index of the mountain flood disaster in Yuqi County is reasonable and reliable.
引用
收藏
页码：341 / 350
页数：10
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