摘要
通过建立的一二维衔接洪水演进数学模型,对永定河泛区的洪水演进进行数值模拟,得到泛区内水位、流量、淹没范围等信息。在此基础上对泛区的洪灾生命损失进行计算,并对洪灾生命损失计算的D&M公式进行了修正,从而能够更好地反映预警时间与洪水风险特征之间的关系。计算结果表明修正效果较好,修正后的公式更具适用性。
Through the establishing 1 - D and 2 - D linking flood routing numerical model, a numerical simulation is made on the flood routing of Yongding River Flood Plain, and then the data of water level, flow rate, inundated area, etc. are ob- tained. On the basis of this, the life loss from flood disaster within the flood plain is calculated, while D＆M formula for life loss calculation is modified, thus the relationship between the time of early warning and the flood risk characteristics can be better reflected. The calculation result shows that the effect of the modification is better and the modified formula is more appli- cable as well.
出处
《水利水电技术》
CSCD
北大核心
2015年第10期17-21,共5页
Water Resources and Hydropower Engineering
基金
国家自然科学基金创新研究群体科学基金(51021004)
河北省水利科研计划项目(HS2007-43)
关键词
永定河泛区
洪水演进
一二维衔接
洪灾生命损失
D&M公式
Yongdinghe River Flood Plain
flood routing
1 -D and 2 -D linking
life loss from flood disaster
D＆M formula
