What is pipe jacking?

Pipe jacking is a trenchless construction method used to install underground pipelines without digging open trenches along the entire route. Precast concrete pipes are pushed into position using powerful hydraulic jacks, while soil is removed from the front. This makes it possible to work beneath roads, railways, and built-up areas without disrupting the surface.

How is it different from traditional trenching?

Unlike open-cut methods, pipe jacking requires only two small shafts—one for launching and one for receiving the pipeline. This greatly reduces surface disruption, preserves existing infrastructure, and shortens project timelines. It’s a cleaner, quieter, and more efficient solution for urban environments or sensitive areas.

Where is pipe jacking most useful?

This method is commonly used in dense urban areas where digging up the surface is impractical or too disruptive. It’s ideal for sewer, water, and stormwater pipelines, especially when crossing under roads, railway lines, or existing buildings.

How long do these installations last?

Pipelines installed through pipe jacking can last 50 to 100 years, depending on site conditions and materials used. Bunisanani Contractors uses durable, precast concrete sleeves to ensure long-term performance with minimal maintenance.

What are the main benefits?

Pipe jacking offers multiple advantages: minimal disruption to surface activity, faster installation times, reduced environmental impact, and long-lasting results. It’s also a safer option when working around existing utilities and structures.

Why choose BLOC Contractors for pipe jacking?

With over 20 years of geotechnical expertise, Bunisanani Contractors has the equipment, technical skill, and project experience to handle a wide range of ground conditions. Every installation is planned for efficiency, safety, and durability—ensuring the pipeline is built to last.