Analysis of flood control risk and countermeasures of left embankment of Yongding River during catastrophic flood
Affected by Typhoon"Dusuri",Beijing Municipality experienced a rare heavy rainstorm from July 29 to August 2,which caused serious casualties,facilities damage and property damage.Based on the importance of flood control safety of the left embankment of Yongding River,it is urgent to analyze and study the flood control risk of the left embankment of Yongding River under the background of the"7·23"catastrophic flood.Through the detection and monitoring technology,numerical calculation,model test and other methods,the analysis of flood control risk of left embankment of Yongding river is carried out.It is considered that there are many risks in the left embankment of Yongding River,such as insufficient su-per elevation and width of the bank,weak protective masonry structure of the bank,inadequate anti-erosion ability,and poor flood discharge in some river sections.On this basis,corresponding engineering measures are proposed for the existing risks.The research results of this article can further improve the flood control system of Yongding River,eliminate the hid-den danger of flood control,ensure the safety of urban flood control in Beijing,and provide references for the treatment and management of large-scale rivers.
"23·7"basin-wide catastrophic floodYongding Riverleft embankmentflood control safetyrisk analysis
NETL
NSTL
万方数据
