基于SWMM模型的洪涝工程规模优化——以柳州市箭盘山工程为例  

Optimization of Flood Control Capacity Based on SWMM Model——A Case Study of Jianpanshan Project of Liuzhou

作　　者：李智[1] 刘玉菲 王芮 LI Zhi;LIU Yufei;WANG Rui(College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学建筑工程学院

出　　处：《净水技术》2020年第1期144-150,共7页Water Purification Technology

基　　金：国家社会公益研究专项资金项目“首都圈水资源保障研究”(50239090)

摘　　要：以柳州市箭盘山为研究区,进行基于SWMM不同重现期下淹没情况的模拟,并计算不同重现期的洪涝灾害损失;结合微观经济学资源配置理论,开展城市洪涝工程经济效益分析和最优规模设计。结果表明,通过提高排水设施规模可增加排水能力,但边际成本增大,边际效益呈递减趋势。当箭盘山干渠的宽为5.65 m、高为3.6 m时,效益为9591.586万元,达到最优经济规模,能够满足城市的洪涝要求且经济合理。研究结果可为我国城市洪涝工程的最优化设计提供技术支持。Taking Jianpanshan in Liuzhou as the research area,the simulation of submergence in different recurrence periods based on SWMM was carried out,and the loss of flood disasters in different recurrence period was calculated.Combining with the theory of microeconomic resource allocation,the economic benefit analysis and optimal scale design of urban flood engineering were carried out.The results showed that increasing the scale of drainage facilities could increase drainage capacity,but the marginal cost increased and the marginal benefit decreased.When the width of Jianpanshan main channel was 5.65 m and the height was 3.6 m,the benefit was 9591.586 million yuan,which could reach the optimal economic scale and met the requirements of urban flood and waterlogging.The research results can provide technical support for the optimal design of urban flood engineering in China.

关 键 词：城市洪涝 灾害损失 SWMM 资源配置 工程规模优化 

分 类 号：TV873[水利工程—水利水电工程]