Trenchless construction

Trenchless construction

Underground construction that involves little or no surface trenches so it has minimal disruption to traffic, business, and other activities. Trenchless technology is a fast growing sector of construction and civil engineering that covers such methods as boring, drilling, tunneling, and pipe ramming.

Industry: Construction

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Trenchless construction

pilot bore

Construction; Trenchless construction

The action of creating the first (usually steerable) pass of any boring process which later requires back-reaming or similar enlarging. Most commonly applied to Directional Drilling and 2-pass ...

Expander

Construction; Trenchless construction

A tool which enlarges a bore during a Pull-Back operation by compression of the surrounding ground rather than by excavation. Sometimes used during a Thrust Boring process as well as during ...

Launch pit

Construction; Trenchless construction

Also known as Drive Pit, but more usually associated with "launching" an Impact Moling tool.

Boring pit

Construction; Trenchless construction

An excavation in the earth of specified length and width for placing the machine on line and grade.

Pipe ramming

Construction; Trenchless construction

A technique for installing steel casings from a drive shaft to a reception shaft utilising the dynamic energy from a percussion hammer attached to the end of the pipe. A continuous casing support is ...