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The evaluation pattern that risk degree is a product of danger degree and vulnerability were introduced based on natural disasters risk expression recommended by the Humanitarian Affairs Department of United Nations. The transformed values function were put out to transfer overtopping probability into danger degree, which were measured on a scale of 0 to 1. "Property index" and "population...
Urban flood control layout, based on which urban flood control engineering projects are constructed, will be synthetically evaluated taking into consideration the social, political, economic, environmental and technical factors involved in different levels. Furthermore, a hierarchical structure model for urban flood control layout is presented in this paper. Then a grey-AHP model is proposed based...
Based on hydrology, a storm flood computation model for urban rain pipe networks is proposed. In this model, the research region is divided into three areas, that is permeable area, impervious area and pipe area. The main methods include the isochronal method, Horton infiltration formula, time-contour method and Muskingum method. The proposed model in this paper is tested by the rainfall runoff data...
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