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

conduit

Construction; Trenchless construction

A broad term that can include pipe, casing, tunnels, ducts, or channels. The term is so broad that it should not be used as a technical term in boring or tunneling.

back reamer

Construction; Trenchless construction

A Cutting Head attached to the leading end of a Drill String to enlarge the Pilot Bore during a Pull-Back operation to enable the Carrier or Sleeve or Casing to be installed.

jacking pipes

Construction; Trenchless construction

Pipes designed to be installed using Pipe Jacking techniques.

exit pit

Construction; Trenchless construction

An opening located at the exit of the cutterhead or casing.

directional drilling

Construction; Trenchless construction

A steerable system for the installation of pipes, conduits and cables in a shallow arc using a surface launched drilling rig. Traditionally the term applies to most crossings in which a fluid-filled ...

slurry boring

Construction; Trenchless construction

A technique that forms a borehole from a drive shaft to reception shaft by means of a drill bit and drill tubing (stem). A drilling fluid (i.e., bentonite slurry, water, or air pressure) is used to ...

auger machine

Construction; Trenchless construction

A machine used to drill earth horizontally by means of a cutting head and auger or other functionally similar device. The machine may be either cradle or track type.