Product Overview of Jacking Pipe

Definition：

   A jacking pipe is a reinforced pipeline engineered for trenchless construction.  Jacking pipe withstands massive hydraulic jacking forces during microtunneling or horizontal directional drilling (HDD) to propel pipes through subsurface strata. Key characteristics include:Enhanced materials: Reinforced concrete (large diameters ≥DN1200), ductile iron (with T-type thrust-resistant joints), fiberglass-reinforced polymer (FRP), or thickened steel pipes;Joint sealing: Connections must provide both alignment guidance and dynamic sealing, typically using rubber-gasketed spigot-socket systems with steel ring locking mechanisms;Process compatibility: Requires integration with tunnel boring machines, laser guidance systems, and grouting technologies for friction reduction.

Advantages：

   Jacking pipe core advantages of jacking pipes lie in their high strength and construction concealment. Featuring thickened walls (e.g., concrete pipe walls can be 1.5 times thicker than standard pipes), they withstand thousands of tons of axial jacking thrust without deformation during long-distance crossings. Their exteriors are coated with polymer friction-reducing compounds or utilize simultaneous grouting technology, reducing propulsion resistance by 30%-50%. Specialized joints (such as V-shaped rubber gaskets combined with steel sleeves) compress and seal automatically during jacking, effectively preventing groundwater and sediment infiltration. The entire construction process occurs underground without surface excavation, significantly minimizing disruption to traffic and ecosystems—making it ideal for dense urban areas or environmentally sensitive zones.

Primary Applications：

   Jacking pipe technology is designed for trenchless installations through complex environments. Key applications include four scenarios:Obstacle crossings: Pipeline installation beneath railways, highways, rivers, and building clusters;Deep-burial projects: Underground utility networks in city centers, wetlands, or heritage sites where surface excavation is impossible;Environmental projects: Preserving surface integrity in ecologically sensitive areas like forests and wetlands;Municipal infrastructure: Large-diameter wastewater mains (commonly ≥DN800), high-pressure water supply lines, electrical conduits, and gas pipelines—exemplified by Tokyo Bay’s sewage project achieving a single jacking drive of 3.2 km.

   Jacking pipe technology enables "invisible" underground pipeline construction through the integration of high-strength pipes, precision joints, and controlled propulsion. By sacrificing construction speed to achieve zero surface disruption, it has become vital for urban renewal and infrastructure in ecologically fragile regions. Success hinges on geological adaptability (e.g., steel pipe reinforcement in quicksand layers), accurate thrust calculations (overloading may crush pipe ends), and grouting control (improper slurry mixtures can cause pipe jamming). Future advancements will focus on intelligent deviation-correction systems and composite material applications.

     SHANDONG EPOCH EQUIPMENT CO., LTD. is a large-scale professional manufacturer in Shandong Province of China, adheres to the orientation of science and technology, environmental protection, quality and efficiency. At present, it has grown into a trans-regional and multi-industrial enterprise integrating such wide industries as design, development, production and export. Visit our website at https://www.epochpipeline.com/ to learn more about our products. For inquiries, you can reach us at sdepochwater@hotmail.com.