The key to pipe jacking construction relies on the main jacking oil cylinder to push in.

Top pipe construction refers to the construction process of using hydraulic power to push steel pipes (including multiple sections of steel pipes) or concrete pipes from point A to point B without digging trenches on the surface. The process principle and process flow of pipe jacking construction is changed from laying pipelines to using machinery as the power to transfer pipelines from point A to point B underground.
Top pipe construction refers to the construction process of using hydraulic power to push steel pipes (including multiple sections of steel pipes) or concrete pipes from point A to point B without digging trenches on the surface. The process principle and process flow of pipe jacking construction is changed from laying pipelines to using machinery as the power to transfer pipelines from point A to point B underground. The main mechanical equipment includes lifting equipment, high-pressure oil pumps, large tonnage jacks, back piles, and back beams, guide rails and excavation tools, theodolites, and level gauges. The function and quantity of the equipment depend on the diameter, length, and weight of the pipe section being pushed in.
Top pipe engineering is a sub-subject of nonexcavation engineering or a construction process of non-excavation engineering. It is a construction process that allows pipelines to pass through auxiliary equipment without excavating the surface layer and can cross highways, railways, rivers, ground buildings, underground structures, and various underground pipelines. The jacking project mainly relies on the thrust of the main jacking oil cylinder and the relay between pipelines to push the tool pipe or tunneling machine through the soil layer from the working well to the receiving well and at the same time push the pipeline into the working hole. The propulsion method of the pipeline relies on the main hydraulic cylinder to push it in, which is commonly referred to as pipe jacking engineering.
Process characteristics and scope of application: Pipe jacking under the road, smooth flow on the road; The roof pipe under the building does not affect the functional use of the building; Shorten the pipeline laying cycle and significantly reduce project costs; Single equipment, easy to operate; Suitable for the construction of railways, highways, and underground pipelines that are difficult or unsuitable for excavating trenches.