Trenchless pipe jacking technology is a non-excavation construction method used in municipal engineering. Its advantages include minimal impact on the surrounding environment, small construction site footprint, and low noise levels. Additionally, it allows for deep underground operations, an advantage that cannot be matched by excavation methods. However, the technology does have its drawbacks, such as longer construction times and higher engineering costs.

Principle of Operation

The pipe jacking method is an underground pipeline construction technique that has developed after the shield tunneling method. It does not require excavation of the surface layer and can cross roads, railways, rivers, ground buildings, underground structures, and various underground pipelines. The pipe jacking process relies on the thrust from the main jacking cylinder and intermediate chambers between the pipes, pushing the tool pipe or tunneling machine from the working shaft through the soil layers all the way to the receiving shaft for lifting. Simultaneously, the pipeline that follows the tool pipe or tunneling machine is also buried between the two shafts, aiming to achieve a non-excavation method for laying underground pipelines.

Key Advantages

No ground excavation required, especially on urban roads.

b. No land requisition or demolition required; no ground structures will be destroyed.

c. Does not affect normal urban traffic order.

d. Preserve the surface vegetation and surrounding environment.

The construction process is unaffected by weather and environmental conditions.

f. Does not affect the segmental deformation of the pipeline.

G State offers time-saving, efficient, and safe solutions without architectural waste pollution, and boasts a low comprehensive cost.