内河水位对管网系统排水能力的影响模拟  

Impact Simulation of Inland Water Level on Drainage Capacity of Pipeline Network

作　　者：梁小光[1,2] 王盼[1,2] 吕永鹏[1,2] 贺晓红[1,2] 王磊磊[1,2] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092 [2]上海城市排水系统工程技术研究中心,上海市200092

出　　处：《城市道桥与防洪》2014年第11期11-14,19,共4页Urban Roads Bridges & Flood Control

基　　金：上海市青年科技启明星计划(12QB1404100);上海市人才发展资金资助项目(201329);国家重大水专项(2013ZX07304002);上海市科委项目(13231201401;13DZ2251700)

摘　　要：以宁波市海曙区为例,基于Infoworks CS模型,模拟评估不同内河水位下不同设计暴雨重现期时系统的排水能力。结果表明,现状雨水管网基本能够抵御1 a一遇降雨,但在3 a一遇和5 a一遇降雨情况下积水严重。当内河水位在1.36-1.90 m时,对管网系统的排水能力影响不大;当其超过1.90 m后,系统排水能力受到显著影响,模拟地面积水点显著增加,且与历史积水点吻合度较高;研究区域管道重力排水的临界内河水位约为1.90 m。This paper introduces the simulation and evaluation of the drainage capacities of sewer system in the different design rainfall return periods under the different inland water levels based on Infoworks CS model by the case of Haishu Distract of Ningbo. The results show that the present rainwater pipe system can basically resist 1 a once rainfall, but the waterlogging is serious under the conditions of 3 a once rainfall and5 a once rainfall. Moreover, the inland river level has a little impact on the drainage capacity of pipeline system when it is in 1.36 ~ 1.90 m. However, the inland river level has significant impact on the drainage capacity of system when it exceeds 1.90 m. The simulation shows that the ground waterlogging point obviously increases and its converging level with the historical waterlogging point is higher. The critical inland river level for gravity drainage of areal pipeline is studied about 1.90 m.

关 键 词：排水管网 内河水位 内涝 Infoworks模型 

分 类 号：TU991[建筑科学—市政工程]