Thrust Boring / Pipe Jacking

Thrust boring, or auger boring, is a jack and bore drilling method typically used for installing steel pipe casing beneath an existing surface where the risk of hole collapse whilst installing larger diameters has been identified or where the grade is critical. Examples of this would be under railways, roads and structures. The thrust boring machine is capable of drilling in a variety of ground conditions from sand through to reasonably hard rock making it a dependable and economical way of drilling. This boring method generally utilizes an auger that is placed inside a section of steel pipe. A large rectangular pit is usually dug on each side of the work area to accommodate the steel pipe and machinery used in this procedure. The pipe casing is jacked into place as the drilling is performed with any excess soil transferred out of the pipe by the auger's blades.

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