The NPD4000 slurry balance pipe jacking machine manufactured by Yangzhou Dilong has been successfully put into operation for the south diversion project of the third-phase urban waterlogging renovation project (Xinkai River System) in Dongguan. Primarily undertaking trenchless pipe jacking and tunnelling construction for the project’s pipeline network, the equipment provides high-quality technical and equipment support for the steady advancement of urban waterlogging control and water system renovation in Dongguan.
As a key urban livelihood and infrastructure project, the third-phase urban waterlogging renovation project of Dongguan is located in the core urban area with dense roads and buried pipelines, presenting an intricate construction environment. The site features variable soil layers and complex hydrogeological conditions. The project imposes stringent requirements on settlement control, tunnelling accuracy, operational safety, as well as construction noise and disturbance reduction. Traditional open-cut construction and ordinary pipe jacking equipment fail to meet the refined construction standards for urban core areas.
To adapt to the complex urban construction environment, dense above-ground and underground structures, and high-standard construction requirements of the waterlogging control project, Yangzhou Dilong deployed the high-performance NPD4000 slurry balance pipe jacking machine. Equipped with a mature and reliable slurry balance control system, the machine achieves dynamic and precise excavation face pressure balance, enabling stable tunnelling in complex urban strata. Featuring low construction disturbance and high forming accuracy, it is highly suitable for pipeline jacking construction in densely built urban areas and effectively avoids common construction risks such as ground settlement and pipeline damage.
During on-site construction, the NPD4000 slurry balance pipe jacking machine maintained stable overall operation and controllable tunnelling attitude. With excellent stratum adaptability and accurate pressure balancing performance, it efficiently completed urban pipeline tunnelling tasks. Giving full play to the advantages of slurry balance pipe jacking technology — low disturbance, high precision and superior safety — the equipment minimizes impacts on surrounding roads, residential areas and existing municipal facilities, ensuring efficient, civilized and standardized project construction.
The successful application of the NPD4000 slurry balance pipe jacking machine in the Dongguan waterlogging renovation project effectively improves the urban water diversion and drainage system, enhances regional flood and waterlogging resistance capacity, and optimizes the urban water environment. Moving forward, relying on professional trenchless equipment and systematic technical services, Yangzhou Dilong will continue to support the high-quality implementation of urban waterlogging management, municipal pipeline upgrading and water environment improvement projects across the country.