期刊文献+

台风暴雨影响区溃坝洪灾淹没损失评估 被引量:5

Dam-break flood loss assessment in hurricane-prone regions
下载PDF
导出
摘要 东南沿海地区受台风暴雨影响易发生山洪、诱发水库溃坝,且水库下游区域往往地势低洼开阔,易积水而出现大面积内涝,对溃坝洪水演进产生一定影响.采用能够考虑下游初始淹没水深的二维洪水演进模型计算溃坝洪水过程,阐述了溃坝洪水数值计算方法、洪水淹没损失分类及损失率确定方法,建立溃坝洪灾淹没损失评估模型.以戍浦江流域为例,确定溃坝洪灾损失率与淹没水深等级关系,对淹没区进行溃坝洪灾淹没损失评估.计算结果表明:水库一旦发生溃坝,洪灾将造成83亿元经济损失,下游社会和生态环境遭到严重破坏,采取有效的预警措施能够显著减少下游的人员伤亡及经济损失.通过溃坝灾害评估,有助于提高水库安全管理水平,为制定防洪避险预案提供支持. The southeastern coastal areas of China are often attacked by hurricanes, and the resulting flash flood increases the risk of dam breaking. Moreover, the downstream areas of the reservoirs are often low- lying and easily flooded, which may affect the dam-break flood routing. Considering the initial water depth in the downstream areas, a two-dimensional dam-break flood model was proposed. The numerical compu- tation method, classification of flood damage and method for determining the loss rates were discussed, and a dam-break flood loss assessment model was set up. The model was applied to evaluate the dam-break flood damage in Xupu River basin based on the determination of the relations between the loss rates and the submergence level. The result shows that the dam-break flood may cause 8.3 billion pecuniary loss and se- rious social and ecological environment damage to the reservoir downstream areas. If an effective precau- tion is launched, the casualty and pecuniary loss can be reduced significantly. The dam-break flood loss as- sessment not only helps improve the reservoir safety management, but also makes foundations for flood control and hedging plan.
出处 《浙江大学学报(工学版)》 EI CAS CSCD 北大核心 2012年第9期1638-1646,共9页 Journal of Zhejiang University:Engineering Science
基金 国家自然科学基金资助项目(51079127) 浙江省重大科技专项社会发展项目(2009C13011) 浙江省重点科技创新团队资助项目(2010R50035)
关键词 溃坝 洪水 洪水演进 淹没损失评估 dam-break flood numerical simulation of flood flood loss assessment
  • 相关文献

参考文献21

  • 1王志军,顾冲时,娄一青.基于支持向量机的溃坝生命损失评估模型及应用[J].水力发电,2008,34(1):67-70. 被引量:21
  • 2国家防汛抗旱总指挥部,中华人民共和国水利部.中国水旱灾公报2009[R].北京:国家防汛抗旱总指挥部,中华人民共和国水利部,2009.
  • 3王志军,张治军,李子阳.GIS支持下的溃坝损失评估方法研究[J].水力发电,2008,34(8):75-77. 被引量:8
  • 4何晓燕,孙丹丹,黄金池.大坝溃决社会及环境影响评价[J].岩土工程学报,2008,30(11):1752-1757. 被引量:32
  • 5李纪人,丁志雄,黄诗峰,胡亚林.基于空间展布式社经数据库的洪涝灾害损失评估模型研究[J].中国水利水电科学研究院学报,2003,1(2):104-110. 被引量:60
  • 6JONKMAN S N,BOCKARJOVA M,KOK M,et al. In-tegrated hydrodynamic and economic modelling of flooddamage in the Netherlands [J ]. Ecological Economics,2008,66(1):77 - 99.
  • 7ANSELMO V,GALEATI G,PALMIERI S,et al. Floodrisk assessment using an integrated hydrological and hy-draulic modelling approach: a case study[J]. Journal ofHydroIogy,1996,175(1/4) :533 - 554.
  • 8OLIVERI E,SANTORO M. Estimation of urban struc-tural flood damages: the case study of Palermo [J].Urban Water,2000,2(3) :223 - 234.
  • 9QI Hong-hai,ALTINAKAR M S. A GIS-based decisionsupport system for integrated flood management underuncertainty with two dimensional numerial simulations[J]. Environmental Modelling & Software?2011,26(6):817-821.
  • 10BROWN C A, GRAHAM W J. Assesing the threat tolife from dam failure[J]. Journal of American Water Re-sources Association,1988,24(6) : 1303 - 1309.

二级参考文献52

共引文献148

同被引文献69

引证文献5

二级引证文献32

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部