What Does Guided Auger Boring Mean?
A guided auger boring system is one which has a guidance system. One type of guided auger boring system uses an actuator sited in the driveshaft. The driveshaft turns a casing and steers the isometric cutting head to follow the design pathway.
Another type of guided auger boring system uses steering rods – one end is on the casing, the other in the drive pit to push the casing in the direction of the design pathway.
Trenchlesspedia Explains Guided Auger Boring
The guided boring method is a third way you can control a guided auger boring system. The guided boring method relies on an auger's pilot tube. This steering procedure uses the pilot tube's guidance/steering mechanisms, also known as the pilot tube method, it involves multiple trenchless processes.
First, a pilot tube is used to drill a pilot bore online and grade with the design path. After the pilot bore is drilled, pipe jacking installs a steel casing and the spoil is removed from the bore by the auger as it excavates the remainder of the bore.