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

Drilling mud

Construction; Trenchless construction

A mixture of water and usually bentonite and/or polymer continuously pumped to the cutting head to facilitate cutting, reduce required torque, facilitate the removal of cuttings, stabilise the ...

Wing cutters

Construction; Trenchless construction

Appendages on cutting heads that will open to increase the cutting diameter of the head when turned in a forward direction, and close when turned in a reverse direction. They are used to cut ...

Drill string

Construction; Trenchless construction

1. The total length of drill rods/pipe, bit, swivel joint etc. in a drill borehole. 2. System of rods used with cutting bit or compaction bit attached to the drive chuck.

Pull back force

Construction; Trenchless construction

The tensile load applied to a Drill String during the Pull-Back process. Directional Drilling rigs are generally rated by their maximum pull-back force.

Remote control system

Construction; Trenchless construction

The remote control system monitors and controls the MBTM, the automated transport system, and the guidance system usually from a fixed location in the drive shaft.