Flood control risk identification and evaluation method for water diversion project
A technology of risk identification and evaluation method, which is applied in the field of flood disaster risk management of water conservancy projects, and can solve problems such as adverse effects of flood control
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[0172] Examples:
[0173] The open channel of a large-scale water transfer project has a total length of more than 1200km, including 39 canal sections. The canal section is used as the evaluation unit to conduct a comprehensive flood control risk assessment of the water transfer project.
[0174] Step A. Collecting and collating flood control data for water transfer projects
[0175] Collect daily rainfall data from 1961 to 2011 at the basic weather station in the project area and surrounding countries, land use data in 2010, 90m grid DEM, engineering geological characteristics of water canal sections, data on crossing buildings and nearby upstream and downstream rivers, and economics on both sides of the channel Social layout information. Among them, the cross-buildings and the nearby upstream and downstream rivers include: narrowing of the flood discharge section, siltation of the building itself, siltation risk, outlet drainage conditions, changes in river topography, etc.
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