UV CIPP: DN1200 River Crossing Pipeline Rehabilitation
The DN1200 pipeline, severely damaged with significant water infiltration requiring urgent rehabilitation during extreme winter conditions (minimum temperature: -9°C).
Project Overview
Location: Shundi River, Xuzhou, Jiangsu, China
Date: December 2023
Pipe Specifications: DN1200 river crossing section, 50m length, ~5m burial depth
Challenge: Severely damaged pipeline with significant water infiltration requiring urgent rehabilitation during extreme winter conditions (minimum temperature: -9°C).
Project Challenges & Anyue's Innovative Solutions
Large-Diameter River Crossing Pipeline with High Groundwater Infiltration
The DN1200 pipeline served as a critical river crossing, experiencing substantial groundwater seepage that threatened structural integrity.
Solution: Anyue's UV CIPP liner, engineered for large-diameter applications, provided a seamless, watertight rehabilitation. The glass-reinforced liner's high tensile strength and resin saturation ensured long-term durability against hydraulic pressure and corrosion.
Limited Site Accessibility & Narrow Workspace
The remote location and confined construction area restricted heavy equipment mobilization.
Solution: Anyue's trenchless UV CIPP system eliminated the need for large machinery. The lightweight, flexible liner was easily transported and installed via small access points, minimizing disruption to the environmentally sensitive river zone.
Sub-Zero Temperature Construction
Extreme cold (-9°C) posed risks for resin curing and crew safety.
Solution: Anyue's low-temperature optimized UV resin and rapid-curing UV lamps ensured reliable curing even in freezing conditions. The UV process completed curing in under 2 hours, far outperforming traditional thermal methods vulnerable to ambient temperatures.
Why Anyue's UV CIPP Liner Excelled
Material Superiority: Our UV-resistant GRP liner offers 50+ years of service life, chemical resistance, and zero shrinkage post-curing.
Speed & Efficiency: The project was completed within 48 hours, including inspection—a 70% time savings versus excavation methods.
Sustainability: Zero excavation preserved the riverbank ecosystem, aligning with Xuzhou's environmental regulations.
Need a Custom Solution?Contact Us to discuss how our UV CIPP technology can solve your pipeline rehabilitation challenges—no matter the diameter, depth, or climate.