Pipe Jacking

Definition

Pipe jacking is the process of forcing pipe through the ground in a tunnel created by the pipe itself. The pipe is generally jacked horizontally in short lengths.

Purpose

Pipe jacking is used to install pipelines under obstacles such as roads, railways, and buildings without the need for open trench excavation. This method minimizes surface disruption and is ideal for urban and congested areas.

Examples of Use

• Sewer Installation: Installing sewer pipes under streets and highways without disrupting traffic.
• Water Mains: Laying water distribution pipes beneath existing infrastructure.
• Utility Tunnels: Creating underground tunnels for utility lines in dense urban areas.

Related Terms

• Microtunneling: A similar technique that uses a remote-controlled, guided boring machine to install pipes.
• Trenchless Technology: Methods of installing underground pipes and utilities without extensive excavation.
• Horizontal Directional Drilling (HDD): A method of installing pipes by drilling a pilot hole along a predetermined path.

Notes

• Equipment: Pipe jacking requires specialized equipment, including jacks, thrust walls, and guidance systems.
• Planning: Proper planning and surveying are essential to ensure accurate installation and avoid underground obstacles.