The distinctive feature of pipe jacking construction is its adaptability.Selecting the appropriate jacking method tailored to various geological conditions, construction requirements, and design specifications is crucial for tunneling construction. How to correctly choose the jacking machine and auxiliary equipment is of utmost importance. Currently, tunneling technology worldwide has reached a highly mature stage, with a myriad of tunneling methods emerging. However, the underlying principle of jacking construction technology remains consistent. Generally, the process involves creating a vertical work pit on the ground and then using high-pressure hydraulic jacks to push cement or steel pipes coated with lubricants into the ground. The differences in technology lie in the methods used to remove soil, rocks, and other debris from the pipeline, ranging from manual to water-suction methods, and even to advanced remote-controlled operations. Below, we introduce the working principle of Shenyang's jacking construction.

The Working Principle of Shenyang Pipe Jacking:

Trenchless pipe jacking is an underground pipeline construction method that has developed following the shield tunneling technique. It does not require excavation of the surface layer and can cross over highways, railways, rivers, ground buildings, underground structures, and various underground pipelines. Pipe jacking relies on the thrust of the main jacking cylinder and intermediate chambers between the pipes to push the tool pipe or boring machine from the working shaft through the soil layer and into the receiving shaft for hoisting. Concurrently, the pipeline trailing the tool pipe or boring machine is also buried between the two shafts, aiming to achieve non-excavation pipeline laying.