Evolution Process and Impact Analysis of the Dam-break Flood of Baihuatan Hydropower Station Based on HEC-RAS
Once the reservoir is destroyed,it will bring huge damage to peoples lives and regional economic development.This paper extracts the topographic information of the upstream and downstream of Baihuatan Hydropower Station by Google Earth and Arc-GIS,establishes a numerical analysis model of the river...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Pearl River
2021-01-01
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| Series: | Renmin Zhujiang |
| Subjects: | |
| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.01.011 |
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| Summary: | Once the reservoir is destroyed,it will bring huge damage to peoples lives and regional economic development.This paper extracts the topographic information of the upstream and downstream of Baihuatan Hydropower Station by Google Earth and Arc-GIS,establishes a numerical analysis model of the river channel through HEC-RAS based on the 1∶1 000 topographic map of the hub,calculates and analyzes the evolution process and the scope of impact of dam-break flood under nine schemes,and clearly defines the submerged scope and transfer route.The results show that:The flow of the breach depends on the width of the breach.During the course of the dam-break flood,with the continuation of the flood into the reservoir,the peak flow of the downstream sections decreases slightly;The greater the flood into the reservoir is,the earlier the peak flow of downstream sections occurs;Guoyushe,Shihua Village,Caiyuanzi,and Anning Village will be flooded to a certain extent.The analysis results provide a scientific basis for the safe operation of power stations and emergency management of flood control,and a reference for the research of similar gate dam projects. |
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| ISSN: | 1001-9235 |