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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
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 ...
bent sub
Construction; Trenchless construction
An offset section of drill stem close behind the drill head that allows steering corrections to be made by rotation of the Drill String to orientate the Cutting Head. Frequently used in Directional ...
roller cone bit or reamer
Construction; Trenchless construction
A bit or reamer in which the teeth rotate on separate, internal shafts that are usually aligned perpendicular to line. Used for boring rock.
pipe pusher
Construction; Trenchless construction
A machine that pushes or pulls a rod or pipe to produce a bore by means of compaction without rotation or impact.
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.
trench box
Construction; Trenchless construction
A preconstructed set of side plates and adjustable cross members to prevent the walls of the pit from collapsing.
steering head
Construction; Trenchless construction
A moveable lead section of casing that can be adjusted to steer the bore.