Barbco TRIBOR Series Operation Manual page 42

GLOSSARY OF TERMS
ADAPTER A short section of tubing with a male hex connector on one end and a female hex connector
on the opposite end used to increase or decrease hex sizes and transmit power from the front drive to
the auger and cutting head.
ADVANCE The motion of the machine in a direction toward the face wall of the entrance pit.
AUGER A flighted drive tube having hex couplings at each end, to transmit torque to the cutting head
and transfer spoil back to the machine.
AUGER DRIVE The female hex connector that is bolted directly to the gearbox of the boring machine
and transmits power from the machine to the auger.
AUGER STRING A series of auger sections coupled together to form the length of the bore.
BACKSTOP Reinforced area of the entrance pit directly behind the track and push plate.
BAND A ring of steel welded at or near the front of the lead section of casing to cut relief and
strengthen the casing.
BASE PUSH UNIT The bottom section of a split boring machine containing the thrust cylinders and
push bar transmitting machine thrust to the push bar and casing pusher.
BENTONITE A colloidal clay sold under various trade names that forms a slick slurry or gel when water
is added. Also known as driller's mud.
BITS Replaceable cutting tools on the cutting head.
BORING The dislodging or displacement of spoil by a rotating auger or drill string to produce a hole
called a bore.
BORING MACHINE A mechanism to drill earth.
BORING PIT see ENTRANCE PIT
BUSHING A female hexagonal shaped socket machined to a close tolerance to accept a male
hexagonal shaped pin of a comparable size.
CAM FOLLOWER A small diameter bearing wheel assembly.
CARRIAGE The mechanical part of a boring machine that includes the engine or drive motor, the drive
train, push bar and hydraulic cylinders.
CASED BORING The process of installing casing in the earth while boring.
CASING The steel pipe that is thrust into the earth by the boring machine.
CASING ATTACHMENT A circular mechanism to provide axial and lateral support of a smaller
diameter casing than that of the casing pusher.
CASING PUSHER The front section of a boring machine that distributes the thrusting force of the
hydraulic cylinders to the casing and forms the outside of the spoil ejection system.
Appendix 39