TAN Qing-jian,QILi-hua,FUZhao-hui,et al.Design of Large-scale Raw Water Pipeline Project for Water Supply to Macao[J].China Water & Wastewater,2023,39(12):75-79.
Design of Large-scale Raw Water Pipeline Project for Water Supply to Macao
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第12期
Page:
75-79
Column:
Date of publication:
2023-06-17
- Abstract:
- The Hongwan section belonged to the raw water system for water supply to Macao is an open channel with a water delivery scale of 45×104 m3/d. Due to the development and construction of Hongwan area, this open channel section needs to be relocated and reconstructed to ensure the water supply safety of Zhuhai and Macao. Based on multi-dimensional comparison and analysis of the key influencing factors in Hongwan area such as topography, geology, water delivery scale, water delivery pipeline, water delivery form, water delivery safety and economy, the raw water system relocation and reconstruction plan is recommended to adopt two DN2 000 pipelines for pressure transmission, with a length of 4.67 km. The project plan focuses on solving technical difficulties such as large-scale double-pipe layout, design of all kinds of double-pipe valve well, process design of double-pipe jacking through Hongwan River and design of pipeline cathodic protection and anticorrosion. Meanwhile, considering the safety of water transmission, the front pool of the downstream pumping station is expanded and reconstructed to double the effective response time to accidents. At present, the project has been built and operated for more than one year, and the reliability and safety of the reconstructed raw water system have been verified.
Last Update:
2023-06-17