洪水风险图编制技术细则.doc

附件一洪水风险图编制技术细则(试行) 二〇一〇年二月目录 1总则··············································································· 1 2 总体技术规定···································································· 2 风险要素的规定··························································· 2 风险图编制流程与洪水计算方法······································ 3 洪水风险图分类与基本技术要求······································ 5 洪水风险计算分析的一般性规定······································ 7 3 基本资料收集与分析···························································· 9 基本要求···································································· 9 自然地理资料······························································ 9 水文及洪水资料·························································· 10 社会经济资料····························································· 11 构筑物及工程调度资料················································· 12 洪涝灾害资料····························································· 13 基础工作底图的加工处理·············································· 14 4 洪水分析与洪水影响分析··················································· 14 洪水分析方法的选择···················································· 14 洪水分析方法的基本技术要求········································ 16 计算条件的设置·························································· 19 洪水过程及淹没范围、水深计算····································· 22 洪水影响分析····························································· 24 5 江河湖泊洪水风险分析······················································ 25 基本内容与要求·························································· 25 基本资料收集····························································· 25 计算方法选择和模型率定验证········································ 26 计算方案设置····························································· 26 洪水影响分析····························································· 28 6 蓄滞洪区洪水风险分析······················································ 29 基本内容与要求··························································