Jacking Pipe

Definition

Jacking pipe refers to the process of forcing a pipe through the ground using the pipe itself to create a tunnel. The pipe is generally jacked horizontally in short lengths.

Purpose

The purpose of jacking pipe is to install underground pipelines without the need for extensive excavation. This method is used to minimize surface disruption and is especially useful in urban areas, beneath roads, railways, and other infrastructures.

Examples of Use

1. Sewer Installations: Jacking pipe is commonly used to install sewer lines beneath city streets, reducing traffic disruption.
2. Utility Conduits: This technique is also employed for laying conduits for electrical and telecommunications cables underground.
3. Water Mains: Jacking pipe is utilized to install water mains without disturbing existing surface structures.

Related Terms

• Microtunneling: A trenchless construction method involving remote-controlled boring machines.
• Horizontal Directional Drilling (HDD): A method for installing underground pipelines by drilling a pilot hole along a pre-determined path.
• Pipe Ramming: A trenchless method involving the use of a pneumatic hammer to drive the pipe through the soil.

Notes

Jacking pipe requires precise alignment and continuous monitoring to ensure that the pipe follows the correct path. The soil conditions and type of pipe used are critical factors that influence the success of this method.