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ZHANG Hai-xing,ZHANG Wei,YANG Wen-hui,et al.Assessment of Urban Waterlogging Risk in Ningbo Sponge City Pilot Area Based on Hydraulic Drainage Model[J].China Water & Wastewater,2020,36(12):8-13.
基于水力排水模型的寧波海綿試點(diǎn)區(qū)內(nèi)澇風(fēng)險(xiǎn)評(píng)估
- Title:
- Assessment of Urban Waterlogging Risk in Ningbo Sponge City Pilot Area Based on Hydraulic Drainage Model
- 關(guān)鍵詞:
- 城市內(nèi)澇; 風(fēng)險(xiǎn)評(píng)估; InfoWorks ICM
- Keywords:
- urban waterlogging; risk assessment; InfoWorks ICM
- 摘要:
- 隨著城市化進(jìn)程的不斷加快，城市內(nèi)澇災(zāi)害頻發(fā)，利用水力排水系統(tǒng)模型對(duì)城市內(nèi)澇風(fēng)險(xiǎn)進(jìn)行評(píng)估已被廣泛應(yīng)用。針對(duì)平原河網(wǎng)城市內(nèi)澇頻發(fā)的現(xiàn)象，以寧波海綿城市試點(diǎn)區(qū)為例，基于InfoWorks ICM模型構(gòu)建排水系統(tǒng)模型，模擬短歷時(shí)不同重現(xiàn)期設(shè)計(jì)降雨（5、10、20、50 a）和長(zhǎng)歷時(shí)不同重現(xiàn)期設(shè)計(jì)降雨（10、50 a）下試點(diǎn)區(qū)內(nèi)澇風(fēng)險(xiǎn)情況。結(jié)果表明，隨著降雨強(qiáng)度的增加，風(fēng)險(xiǎn)區(qū)面積呈遞增趨勢(shì)，短歷時(shí)設(shè)計(jì)降雨模擬顯示中風(fēng)險(xiǎn)區(qū)的平均增長(zhǎng)率約為21%，低、高風(fēng)險(xiǎn)區(qū)面積平均增長(zhǎng)率約10%；50年一遇長(zhǎng)歷時(shí)設(shè)計(jì)降雨模擬顯示試點(diǎn)區(qū)內(nèi)澇風(fēng)險(xiǎn)等級(jí)分布以中、高風(fēng)險(xiǎn)為主，總占比約為91%，高風(fēng)險(xiǎn)區(qū)占比約51%。
- Abstract:
- With the acceleration of urbanization, the urban waterlogging disasters occur frequently. The hydraulic drainage model has been widely used to evaluate the risk of urban waterlogging. In view of the frequent occurrence of waterlogging in the plain water network cities, a drainage system model based on the InfoWorks ICM was established in the pilot area of the Ningbo sponge city to simulate the waterlogging risk under short duration design rainfall (5-year, 10-year, 20-year, 50-year) and long duration design rainfall (10-year, 50-year). The results showed that the risk area increased with the increase of rainfall intensity. The simulation results of short-duration design rainfall showed that the average growth rate of middle-risk areas was about 21%, while those of low and high risk areas were about 10%. According to the simulation results of the long duration design 50-year repetition period of rainfall, the distribution of waterlogging risk in the pilot area was mainly medium and high risk, accounting for about 91% in total, and 51% in the high risk area.
相似文獻(xiàn)/References:
[1]金溪,王芳.基于CUDA架構(gòu)的內(nèi)澇一維/二維耦合模型求解方法[J].中國(guó)給水排水,2020,36(17):103.
JIN Xi,WANG Fang.Calculation Method of Urban Flooding One-dimensional/Two-dimensional Coupling Model Based on CUDA-based Parallel Implementation[J].China Water & Wastewater,2020,36(12):103.
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CAI Tian,WANG Jia.Application of Drainage Model and GIS Fuzzy Comprehensive Evaluation in Waterlogging Risk Assessment[J].China Water & Wastewater,2021,37(12):117.
