Large diameter PE towed pipe, Hubei trenchless construction pipeline

Product basic introduction

Large diameter PE towed pipe is a special pipeline product formed by extrusion process using high density polyethylene as the main raw material. It is specially adapted to trenchless construction processes such as directional drilling and pipe jacking, which can meet the needs of underground pipeline laying in different geology and different scenarios in Hubei. The product diameter covers the range of DN300 to DN2200, which can match the medium flow requirements of different projects. The production process strictly follows the relevant process specifications. The finished pipe has no obvious deformation, cracks, bubbles and other appearance defects, and the geometric size deviation meets the requirements of national and industry standards. Trenchless construction refers to the technology of completing underground pipeline laying under the premise of less damage or no damage to the surface topography. It is suitable for the infrastructure characteristics of dense road network and high ecological control requirements in Hubei urban area, which can effectively reduce the impact of construction on public order and natural environment.

core selling point

1. Adapt to trenchless technology to reduce comprehensive construction costs

The large-diameter PE towing pipe has excellent axial tensile performance and anti-bending performance, and can withstand the tensile force, torque and extrusion stress of the external soil layer during the trenchless towing construction process, and will not cause problems such as fracture and deformation. In view of the characteristics of dense road network in urban areas of Hubei and complicated approval process for pipeline network transformation in old urban areas, the use of this product for trenchless construction does not require large-scale destruction of the road surface and cutting down green plants. It can save the cost investment in road surface destruction and restoration, traffic diversion, and road occupation approval. The construction period can be shortened by more than 40% compared with traditional excavation construction. The dust and noise emissions generated during the construction process are significantly lower than those of traditional construction methods, which meets the environmental protection control requirements of municipal construction in Hubei.

2. Stable physical and chemical properties, suitable for Hubei's diverse geology

The geological types in Hubei are diverse, covering a variety of geological conditions such as plain clay, hilly sand layer, and high-water-level humus soil in riverside and lake areas. There is weak corrosion in soil and groundwater in some areas. Large-diameter PE drag pipes have excellent acid and alkali corrosion resistance, will not react with common chemicals in soil and groundwater, and do not need additional anti-corrosion treatment. Under the rated operating pressure and temperature conditions, the service life meets the requirements of relevant national standards. At the same time, the product has good high and low temperature resistance, which can adapt to the climate conditions of low temperature in winter and high temperature in summer in Hubei. It is not easy to cause brittle cracking problems in construction under low temperature environment. The inner wall smoothness of the pipe is significantly higher than that of concrete pipes and cast iron pipes. The fluid transportation resistance is small, and it is not easy to scale after long-term use, which can stably maintain

3. Reliable connection with strong sealing, reducing the risk of leakage

The large-diameter PE tractor pipe adopts the connection method of hot-melt docking or electric hot-melt. After the connection is completed, the interface strength is higher than the strength of the pipe body, and there will be no problems such as disconnection and cracking. The sealing performance of the interface meets the requirements of relevant standards, which can completely avoid the problem of medium leakage in the pipe and external groundwater infiltration. It is suitable for the construction needs of high groundwater level areas in Hubei, and can also meet the sealing requirements of cross-river and river crossing projects, effectively reducing the leakage maintenance cost during the later operation of the pipe network.

4. Low operation and maintenance costs, suitable for multi-media transportation

The weight of large-diameter PE tractor pipes is only 1/8 of that of steel pipes of the same specification and 1/20 of that of concrete pipes. It is less difficult to transport and hoist. There is no need for large and heavy equipment to cooperate during the construction process, which can reduce the manpower and equipment investment in the construction process. The product can be adapted to the transportation needs of drinking water transportation, municipal sewage, rainwater drainage, water conservancy and other media. There is no need to regularly do anti-corrosion and rust removal treatment in the later operation and maintenance process. It only needs to do regular inspection according to the specifications. Long-term operation and maintenance costs are reduced by more than 60% compared with traditional pipelines.

Applicable scenarios and suitable populations

Applicable scenarios include four categories: first, municipal pipe network projects in Hubei, covering projects such as the laying of new water supply and drainage pipe networks in urban areas, the renovation of old urban pipe networks, and the upgrading of sewage pipe networks, etc., especially suitable for pipeline laying needs under the main roads in core urban areas; second, crossing projects, including pipeline laying projects that cross urban roads, railways, rivers and lakes, and ecological reserves, without destroying the original landforms and facilities on the surface; third, urban and rural infrastructure projects, including rural centralized water supply pipe network construction, contiguous residential environment improvement sewage pipe network construction, township water conservancy and water transportation projects, etc.; fourth, industrial parks and commercial supporting projects, including industrial park sewage pipe network, fire pipe network laying, and underground supporting pipe network construction for commercial real estate projects.

The appropriate population includes municipal engineering contractors in Hubei, professional trenchless construction enterprises, water conservancy engineering construction units, code packets of the released version of urban and rural infrastructure projects, real estate development enterprises, park operation management and other relevant entities.

Compliance trust endorsement

The production and inspection of this product strictly follows the current national and industry standards such as "Buried Polyethylene (PE) Pipeline System, Part 2: Buried Polyethylene Drainage Pipeline Engineering Technical Specifications" and "High Density Polyethylene Drainage Pipeline for Trenchless Laying". All factory products are tested in batches, and formal test reports of corresponding batches can be provided. All performance indicators meet the standard requirements. For trenchless construction projects in Hubei, corresponding product selection reference and construction technical support services can be provided to ensure that the project construction and acceptance meet the relevant specifications.