综合管廊大口径输配水干管专项设计要点  

Design Key Points of Large Diameter Water Transmission and Distribution Trunk Main in Utility Tunnel

作　　者：李洁 王晏 LI Jie;WANG Yan(Shanghai Municipal Engineering Design InstituteCo.Ltd.,Shanghai 200092,China)

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200092

出　　处：《中国给水排水》2022年第2期79-82,共4页China Water & Wastewater

基　　金：上海市政工程设计研究总院(集团)有限公司科研专项(K2017K027A)。

摘　　要：讨论了综合管廊大口径输配水干管专项设计要点,分析了管廊内大口径输配水管管材选择、管道接口形式、管道防腐、附属设施设计,结合工程案例介绍了关键节点设计以及施工时应注意的问题。得出如下结论:管廊内DN800以上干管多采用钢管,连接方式采用焊接;根据供水管道运行要求,需要设置必要的检修阀、排水阀、排气设备、压力变送器等;关键节点主要包括引出口、端部井以及交叉口管线设计;建议管道远程监控与管廊监控系统合用,监控信号送至自来水公司;专项设计需保证近远期设计容量、相应的安装维护空间以及控制要求。The key points of special design of large diameter water transmission and distribution trunk main in utility tunnel were discussed,and the selection of pipe material,form of pipe interface,anti-corrosion and design of auxiliary facilities was analyzed.In addition,design of the key nodes as well as the problems that should be paid attention to in the construction was introduced by combing with engineering examples.Trunk mains with diameters above DN800 in the utility tunnel are mostly steel pipes and connected by welding.According to the operational requirements of the water supply pipeline,necessary repair valve,drain valve,exhaust equipment,pressure transmitter and other facilities need to be set up.The key nodes mainly include the design of the outlet,end well and intersection.It is recommended to use remote pipe monitoring system with utility tunnel monitoring system,and the monitoring signal is sent to the water supply company.Special designs should ensure short-term and long-term design capacity,corresponding installation and maintenance space and control requirements.

关 键 词：综合管廊 输配水干管 设计要点 

分 类 号：TU990.3[建筑科学—市政工程]