1. Limited terrain space: The narrow river valley basin restricts construction operations;

2. Significant traffic management pressure: National highway construction must maintain normal traffic flow without closures;

3. Technical demonstration challenges: As the first project in Northwest China to apply this technology, technical adaptation and on-site guidance present high complexity.

1. Achieved truly “trenchless” rehabilitation without disrupting national highway traffic throughout the project, ensuring uninterrupted public access;

2. Served as a model trenchless water pipeline rehabilitation project in Northwest China, attracting dozens of water utilities for on-site exchanges;

3. Completed construction efficiently within 2 days, balancing repair quality with traffic demands, establishing a benchmark for pipeline rehabilitation in river valley basins.

Overcoming the dual challenges of narrow valley terrain and construction along national highways, the project maintained uninterrupted traffic throughout while perfectly balancing construction quality with public transportation needs. As the first demonstration project of its kind in Northwest China, it not only resolved our practical water supply challenges but also provided invaluable experience for similar projects in surrounding areas. Both its professional capabilities and service standards deserve high recognition! —Water Supply Group