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Description Auger boring also referred to as horizontal boring or jack and bore is one of the oldest tried and true semi- trenchless construction methods of the past and still remains one of the most economical and dependable ways to make crossings beneath highways, railroad tracks and other challenging obstacles. Auger boring consists of a rotating cutting head and auger, internal to a steel casing that is being advanced hydraulically. The internal auger turns to remove soils while the hydraulics advance the casing. Typically an entrance and exit pit must be excavated in order to accommodate the auger bore equipment.
Another key factor provided by the use of Auger boring is the fact that no voids are created as the casing is advanced ahead of the cutting head in most instances allowing the soils to be enveloped internal to the steel casing and only then are the soils extracted by the turning auger. This is the primary reason that many Rail Road Companies only accept Auger Boring beneath Rail Road Tracks.
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