XUMing,CUIHongjun,CAOFengfeng,et al.Pilot Test on Ductile Iron Pipe Lining Rehabilitation Technology for Aging Large Prestressed Reinforced Concrete Water Supply Pipelines[J].China Water & Wastewater,2026,42(12):39-43.
球墨铸铁管内衬修复大型预应力钢筋混凝土供水管道中试
- Title:
- Pilot Test on Ductile Iron Pipe Lining Rehabilitation Technology for Aging Large Prestressed Reinforced Concrete Water Supply Pipelines
- 摘要:
- 在城市更新改造推动城市可持续发展的时代背景下，本文针对直径为2 000 mm预应力钢筋混凝土供水管道老化问题，提出了一种新型球墨铸铁管内衬修复技术，并进行了中试研究。通过试验，评估了不同内衬材料下管道的过流能力、不同借转角度下的顶推效果，以及注浆材料的性能。此外，通过相同工况下不同施工方案对比，证实球墨铸铁管内穿插修复技术不仅技术可行，而且经济合理，可为城市供水系统的升级改造提供科学依据和技术支撑。
- Abstract:
- In the context of promoting urban sustainable development through urban renewal and transformation, this article introduces an innovative ductile iron pipe lining rehabilitation technology to address the aging issues of prestressed reinforced concrete water supply pipelines with a diameter of 2 000 mm and presents pilot studies conducted to evaluate its effectiveness. Through experimental analysis, the study assessed the hydraulic performance of pipelines with different lining materials, the pushing efficiency under various deflection angles, and the properties of grouting materials. Furthermore, by comparing different construction methods under identical working conditions, the results demonstrate that ductile iron lining rehabilitation technology is not only technically feasible but also economically viable. This technology provides a robust scientific basis and practical technical support for the upgrading and modernization of urban water supply system.
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