Recently, the project from the upstream bridgehead of Quzika Township to Guxue Group village road in Mangkang County, Tibet Autonomous Region—the Quzika right-bank bridgehead to Zhaxiyangding village road project—constructed by Sinohydro Bureau 9 Co., Ltd., successfully passed the completion acceptance by the acceptance team, marking that the project officially meets the conditions for trial operation. This road is an important component of the local road network and will play an important role in promoting common prosperity for farmers and rural areas, advancing comprehensive rural revitalization, and accelerating the pace of agricultural and rural modernization.

The acceptance team was led by the owner unit and composed of representatives from the design, construction, supervision, testing and other participating units. During the acceptance period, the team conducted on-site verification, document review, and briefings, focusing on a comprehensive review of the quality of key works such as subgrade and pavement, tunnel electromechanical systems, and traffic safety facilities, as well as construction procedures and contract execution documents. It comprehensively assessed that all indicators of the project meet design and specification requirements, the project quality is qualified, and the completion acceptance standards are met, and agreed to pass the completion acceptance.

The project is located on the right bank of the Lancang River in Quzika Township, Mangkang County, Qamdo City, Tibet Autonomous Region. It is a key traffic node connecting the upstream material storage road on the right bank with the Zhaxiyangding spoil ground road, and will serve as a core traffic road for related engineering construction in the future. The road is laid out along the right bank of the Lancang River and is built to the Class III special road standard for external engineering, with a design speed of 30 km/h, a subgrade width of 8.5 m, and a carriageway width of 7.0 m. It uses cement concrete pavement, and the road load standard reaches Highway-I level, while also meeting the requirements of Auto-60 and Special-300.

During construction, the project team faced multiple severe geological and environmental challenges, including loose accumulation body slopes, wind-eroded rockfall, and flash floods during the flood season. Always taking "safe support + quality assurance + ecological protection" as the core objective, the team advanced innovative upgrades in construction technology while strictly adhering to the bottom line of safe construction. The team used UAV aerial photography modeling to comprehensively investigate slope hazard points and accurately delineate dangerous work areas, and simultaneously installed intelligent monitoring equipment such as crack displacement meters and inclination sensors to achieve 24-hour real-time warning of rockfall risks. During the construction stage, remotely controlled spraying equipment was used for slope surface operations to minimize the time personnel were directly exposed to high-risk areas, and full-time safety supervisors were assigned for dynamic monitoring throughout the process.

At the same time, the project team core-applied three-layer reconstruction technology to solve the slope treatment problem. Through professional equipment, it sequentially sprayed an impermeable layer to build a strict waterproof barrier on the slope surface, resisting erosion of the slope by rainwater during the flood season, fundamentally solving the support and reinforcement problem of loose slopes and effectively avoiding the risk of slope collapse. It laid a vegetation layer to build a solid nutrient foundation for plant growth, reshaping a surface environment suitable for plant growth and simultaneously achieving slope greening coverage. It covered with a crust layer to strengthen the structural stability of the slope surface, effectively promoting ecological environment restoration in the construction area and achieving deep coordinated advancement of safe construction, engineering construction, and ecological protection.

After the project is completed and put into operation, it will further improve the road network structure in the project area, provide solid traffic support for later engineering construction, and effectively improve the travel conditions of local villagers, injecting strong momentum into the promotion of local rural revitalization.