[1]李文涛,王广华,周建华,等.广州市静态洪涝风险图编制案例探讨[J].中国给水排水,2023,39(3):104-108.
LIWen-tao,WANGGuang-hua,ZHOUJian-hua,et al.Discussion on the Compilation of Static Flood Risk Map in Guangzhou[J].China Water & Wastewater,2023,39(3):104-108.
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LIWen-tao,WANGGuang-hua,ZHOUJian-hua,et al.Discussion on the Compilation of Static Flood Risk Map in Guangzhou[J].China Water & Wastewater,2023,39(3):104-108.
广州市静态洪涝风险图编制案例探讨
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第39卷
期数:
2023年第3期
页码:
104-108
栏目:
出版日期:
2023-02-01
- Title:
- Discussion on the Compilation of Static Flood Risk Map in Guangzhou
- Keywords:
- flood risk map; basin; drainage area; water account; hydraulic model
- 摘要:
- 为提高广州市的洪涝防御能力，首次以流域和排涝片区为单元，构建排涝片区二维水动力模型，算清流域“水账”，分析洪涝成因，编制广州市9大流域105个排涝片区的静态洪涝风险图。洪涝风险图能直观反映曾经发生积水或洪涝淹没的位置及空间分布，提前掌握洪涝淹没范围、淹没水深、淹没时间等关键信息，对摸清广州市洪涝灾害风险隐患底数具有重要价值，可为制定科学有效的超标洪涝防御预案，提高避洪转移、防汛抢险物资分配及调度的科学性提供重要支撑。
- Abstract:
- In order to improve the flood prevention ability of Guangzhou, for the first time, a two-dimensional hydrodynamic model was built with the basin and drainage area as the unit. The “water account” of the basin was calculated, the causes of flood were simulated and analyzed, and a static flood risk map of 105 drainage areas of 9 major basins in Guangzhou was prepared. The flood risk map can directly reflect the location and spatial distribution of water-logging or flood inundation in history, and control the scope and depth of flood inundation in advance. The key information, such as submergence time, is of great value in understanding the base number of potential flood hazards in Guangzhou. It can provide important support for the urban flood prevention work by formulating scientific and effective plans for preventing excessive floods, improving the scientificness of flood avoidance transfer, distribution and dispatching of flood prevention and emergency materials.
更新日期/Last Update:
2023-02-01