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Copyright 2007 M.R. Martin Construction Inc.
Boring or jacking, also known as Auger boring method (ABM), is a well-established trenchless method that is widely used for the installation of steel pipes and casings, especially under railways and road embankments. It is a very economical trenchless pipe installation method that can be used under various soil conditions in diameters from 4” to 72”. This method is an alternative way to install larger diameter steel casing as it reduces damage to pavement and reduces disruptions to traffic hence reducing the social cost of pipe installations. Boring and jacking is defined as a technique for forming a bore from a drive pit, by means of a rotating cutting head. Spoil is removed back to the drive pit by helical auger flights rotation in the steel casing as the casing is pushed or advanced along the bore path. The elements/components of ABM installations are: • The basic unit which provides the physical means – to cut open the hole • Casing pusher and Power pack • Auger sections • Track and track extensions • ABM casing backstop
Auger Boring Method Overview
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