LI Jie,WANG Yan.Design Key Points of Large Diameter Water Transmission and Distribution Trunk Main in Utility Tunnel[J].China Water & Wastewater,2022,38(No.2):79-82.
Design Key Points of Large Diameter Water Transmission and Distribution Trunk Main in Utility Tunnel
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
No.第2
Page:
79-82
Column:
Date of publication:
2022-01-17
- Abstract:
- 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.
Last Update:
2022-01-17