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Ultra-Long Distance, Large-Diameter Pipeline Rehabilitation
Keywords: No-dig, Trenchless, Ultra-Long Distance, Large Diameter, Efficient and Stable Rehabilitation, Intelligence
The sewer pipeline to be rehabilitated is located beneath a railway bridge and has been in service for over 20 years. Due to prolonged use, some sections have developed cracks and leaks. If not repaired in time, these defects could compromise the stability of the railway bridge. However, traditional open-cut repair methods would require prolonged road closures, severely impacting local traffic. Therefore, the project team opted for trenchless rehabilitation to minimize disruption while ensuring efficient and effective restoration.
This project involved rehabilitating a DN1200mm sewer main, with a single repair section extending 246 meters. The UV-CIPP method was adopted to complete the rehabilitation in a single application.
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Solution
The TAMBORA system, featuring a modular design, extended the cable reel length to 300 meters, enabling curing over long distances and meeting the project's requirements.
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Solution
The system was equipped with a 6×1500W UV light chain, delivering high-intensity illumination for uniform resin curing. This enhanced the structural integrity and durability of the rehabilitated pipeline.
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Solution
The system integrated intelligent control and high-definition video monitoring. A digital interface supported wireless connectivity to multiple terminals, allowing operators to monitor real-time high-resolution footage of the pipeline interior. Key parameters such as light carriage speed and lamp power were adjustable via a portable control terminal. Additionally, the system automatically recorded operational data to enhance accuracy and improve repair quality.
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Solution
Compared to conventional methods, UV-CIPP offers significantly faster curing speeds. Leveraging TAMBORA’s high-efficiency curing capabilities, the team successfully completed the 246-meter pipeline rehabilitation in just 10 hours, allowing rapid traffic restoration and minimizing construction impact.
By leveraging trenchless technology, the project achieved non-invasive, rapid, eco-friendly, and durable pipeline rehabilitation, effectively restoring the pipeline while minimizing disruption.
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