Application of Tow Pipe for Trenchless Construction in Xiaogan Pipeline Project

The special towing pipe for trenchless construction is a special pipe developed for the pipeline laying process without digging the ground. It is mostly made of high-density polyethylene as the main raw material and formed by a special extrusion process. It has the mechanical properties and physical and chemical properties suitable for towing operations. It has been widely used in the trenchless construction of various pipeline projects in Xiaogan area, effectively solving the problems of traditional excavation construction breaking roads and affecting traffic and the lives of surrounding residents.

The core practical advantages of this type of product are mainly four points: First, the construction adaptability is outstanding. The tensile strength, ring stiffness and other mechanical indicators of this type of pipe are suitable for the construction operation requirements of non-excavation horizontal directional drilling and other equipment. During the towing process through roads, buildings and rivers, it can withstand stress and moderate deformation in different directions, and will not break or crack. It can adapt to the diverse geological conditions of plain and river network in Xiaogan area, reducing the construction difficulty. Second, the sealing and anti-seepage performance is excellent. The pipe interface is connected by hot melt docking process, and the overall strength of the joint is higher than the strength of the pipe body. After the laying is completed, it can effectively isolate groundwater and soil impurities from penetrating into the lumen, and at the same time avoid the leakage of the conveying medium in the pipe. It meets the performance requirements of various pipeline projects in Xiaogan for anti-seepage and leakage prevention, and reduces the hidden danger of leakage in later operation and maintenance. Third, the service period is stable and long. The pipe raw material itself has the properties of acid and alkali corrosion resistance, anti-aging, and anti-wear. Under the conditions of normal buried laying and meeting the use specifications, the service life can reach more than 50 years, without frequent replacement and maintenance. It can adapt to the long-term stable operation of Xiaogan municipal pipelines and public pipelines, and reduce the operation and maintenance investment in the whole life cycle. Fourth, When used with trenchless construction technology, there is no need to demolish a large area of road surface and relocate ground attachments, which can greatly shorten the construction period, reduce additional costs such as road closure and the impact of surrounding business models, and meet the cost control requirements of various pipeline projects in Xiaogan area.

From the perspective of the scope of application, this type of tractor pipe is suitable for the trenchless laying of various types of pipelines such as municipal water supply pipelines, drainage pipelines, communication pipelines, and power pipelines in Xiaogan area. It is especially suitable for pipeline projects that need to pass through urban main roads, densely populated areas, ecological control areas, and inland rivers, which can minimize the impact of construction on the surrounding environment and normal public order. The suitable population includes units engaged in pipeline engineering construction in Xiaogan area, municipal construction management departments, and various pipeline network operation units. All pipeline projects involving trenchless construction requirements can choose the corresponding specifications according to the engineering requirements.

At present, the production and construction of special tractor pipes for trenchless construction strictly follow the relevant standards requirements of the current national "Buried Polyethylene (PE) Pipeline System" and "Trenchless Laying Polyethylene Pipe". Qualified products entering the Xiaogan market have passed third-party quality inspection, and each performance index meets the construction and acceptance specifications of Xiaogan pipeline project, which can meet the requirements of different grades of engineering construction.