基于SWMM的武汉市典型城区降雨径流模拟分析
Analysis of Storm Runoff Simulation in Typical Urban Region of Wuhan Based on SWMM

作者: 闫磊 :武汉大学水资源与水电工程科学国家重点实验室,武汉; 熊立华 :武汉大学水资源与水电工程科学国家重点实验室,武汉;武汉大学水资源安全保障湖北省协同创新中心,武汉; 王景芸 :武汉水资源发展投资有限公司,武汉;

关键词: 城市内涝降雨径流模拟SWMM城市排水管网设计洪峰Waterlogging Rainfall-Runoff Simulation SWMM Urban Drainage Network Design Flood Peak

摘要:

近年来,越来越突出的城市内涝问题对城市排水系统规划设计提出了更高的要求。目前我国城市排水系统规划设计中仍然主要以推理公式法计算洪峰流量,同时市政排水系统的设计重现期也偏低,一旦发生较大的暴雨,便可能导致城市内涝现象的发生。本文引进在国内外得到广泛应用的计算机数学模型SWMM(Storm Water Management Model)进行武汉市典型城区的降雨径流计算。建模步骤包括利用GIS进行汇水区的划分和属性数据的提取,管网系统概化、以及参数设置。应用所构建的模型对不同降雨情景下研究区排水管网运行状况进行了模拟。结果显示,随着重现期的增加,沙湖出水口径流总量和洪峰流量增加明显,同时管网节点溢流和管道超载情况趋于严重。研究区的排水管网系统能够满足设计标准,顺利的排走1年重现期的暴雨,但是随着重现期的增加,管网性能降低明显。

Abstract: With the continuing urbanization, waterlogging problems in Chinese cities become more and more prominent, thus putting big pressures on the urban drainage network. In the urban drainage system design in China, the design recurrence interval of rainfall is often set to be very low, thus urban waterlogging can easily happen once big heavy rainstorm happens. Also, traditional rational formula method is still widely used to calculate peak flow from rainfall. This article introduces a hydrological model package named SWMM to simulate the rainfall-runoff processes in a typical urban region, named the Chu rivulet, in Wuhan city. Major steps of applying models include the use of GIS to discretize the study area into a number of sub-drainage areas and the extract of the attribute information for each sub-drainage area, the drainage network generalization, and the parameters setting and calibration. In order to analyze the operation conditions of the drainage system, the established model is applied in the study area under the rainfall scenarios with different frequencies. The results show that with the increase of recurrence interval of rainfall, the total runoff and peak flow at the Chu rivulet outlet increase, and the surcharging of the drainage network becomes more and more serious. It is concluded that the designed drainage system can drain away rainwater with recurrence interval of 1 year, but with the increase of recurrence interval of rainfall, the performance of drainage system degrades significantly.

文章引用: 闫磊 , 熊立华 , 王景芸 (2014) 基于SWMM的武汉市典型城区降雨径流模拟分析 。 水资源研究, 3, 216-228. doi: 10.12677/JWRR.2014.33028

参考文献

[1] 王宝泉. 浅谈我国城市雨水排水系统中的问题和对策[J]. 河北工程技术高等专科学校校报, 2008, 4: 16-19. WANG Bao-quan. Problems and countermeasures in urban rainwater drainage system in our country. Journal of Hebei Engineering and Technical College, 2008, 4: 16-19. (in Chinese)

[2] 王海潮, 陈建刚, 孔刚, 等. 基于GIS与RS技术的SWMM构建[J]. 北京水务, 2011, 3: 46-49. WANG Haic-hao, CHEN Jian-gang, KONG Gang, et al. SWMM construction based on GIS and RS technology. Beijing Water, 2011, 3: 46-49. (in Chinese)

[3] 任伯帜, 邓仁健, 李文健. SWMM模型原理及其在霞凝港区的应用[J]. 水运工程, 2006, 4: 41-44. REN Bo-zhi, DENG Ren-jian and LI Wen-jian. Principles of SWMM model and its application in Xianing port area. Port & Waterway Engineering, 2006, 4: 41-44. (in Chinese)

[4] 丛翔宇, 倪广恒, 惠士博, 等. 基于SWMM的北京市典型城区暴雨洪水模拟分析[J]. 水利水电技术, 2006, 4: 64-67. CONG Xiang-yu, NI Guang-heng, HUI Shi-bo, et al. Simulative analysis on storm flood in typical urban region of Bejing based on SWMM. Water Resources and Hydropower Engineering, 2006, 4: 64-67. (in Chinese)

[5] 赵冬泉, 陈吉宁, 佟庆远, 等. 基于GIS构建SWMM城市排水管网模型[J]. 中国给水排水, 2008, 7: 88-91. ZHAO Dong-quan, CHEN Ji-ning, TONG Qing-yuan et al. Construction of SWMM urban drainage network model based on GIS. China Water & Wastewater, 2008, 7: 88-91. (in Chinese)

[6] 中华人民共和国住房和城乡建设部. 室外排水设计规范GB 50014-2006(2014年版)[S]. 北京: 中国计划出版社, 2002. The Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Code for design of outdoor wastewater engineering (GB 50014-2006), 2014. Beijing: China Planning Press. (in Chinese)

[7] 徐宗学, 等. 水文模型[M]. 北京: 科学出版社, 2009. XU Zong-xue, et al. Hydrological models. Beijing: Science Press, 2009. (in Chinese)

[8] 贾仰文, 王浩, 倪广恒, 等. 分布式流域水文模型原理与实践[M]. 北京: 中国水利水电出版社, 2005. Jia Yang-wen, Wang Hao, Ni Guang-heng, et al. Principles and practice of distributed hydrological models for river basins. Beijing: China Water & Power Press, 2005. (in Chinese)

[9] 武汉市规划设计研究院. 东沙连联通渠(楚河)修建规划, 2009. Wuhan Planning and Design Institute. Canal construction plan linking East Lake and Shahu Lake, 2009. (in Chi-nese)

[10] 武汉市规划设计研究院. 楚河排水规划修建说明书, 2009. Wuhan Planning and Design Institute. Construction plan direction of drainage system in Chu rivulet, 2009. (in Chi-nese)

[11] 谢莹莹. 城市排水管网系统模拟方法和应用[D]. 上海: 同济大学, 2007. XIE Ying-ying. The method and app1ication of urban sewer system simulation. Shanghai: Tongji University, 2007. (in Chinese)

[12] 武汉国土资源和规划网. 武汉市城市总体规划(2010-2020)[URL], 2011. http://www.wpl.gov.cn/ Wuhan Land Resources and Planning Bureau. Comprehensive planning of Wuhan (2010-2020), 2011. http://www.wpl.gov.cn/ (in Chinese)

[13] 武汉国土资源和规划网. 武汉市A110105、A110206局部控制性详细规划[URL], 2009. http://www.wpl.gov.cn/ Wuhan Land Resources and Planning Bureau. Local regulatory detailed planning of Wuhan (A110105, A110206), 2009. http://www.wpl.gov.cn/ (in Chinese)

[14] ROSSMAN, L. A. (2010) Storm water management model user’s manual (Version 5.0). United States: Environmental Protection Agency.

[15] 北京市市政工程设计研究总院. 给水排水设计手册(第二册)城镇排水. 第2版, 北京: 中国建筑工业出版社, 2004. Beijing General Municipal Engineering Design & Research Institute. Water supply & drainage design handbook (book two) urban drainage. 2nd Edition, Beijing: China Architecture & Building Press, 2004. (in Chinese)

[16] 张大伟, 赵冬泉, 陈吉宁, 等. 芝加哥降雨过程线模型在排水系统模拟中的应用[J]. 给水排水, 2008, S1: 354-357. ZHANG Da-wei, ZHAO Dong-quan, CHEN Ji-ning, et al. Application of Chicago approach in urban drainage network modeling. Water & Wastewater Engineering, 2008, S1: 354-357. (in Chinese)

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