© 2010 Utilicor Technologies Inc.
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the hole, increasing the vertical stability of the core as well as adding
to the overall strength of the reinstatement process.
(4)
Coring Guidance:
Because the pilot bit cuts slightly deeper than the
coring drum, it can provide the coring operator with an audible and
sensory cue as to when the coring drum is about to core through the
bottom of the pavement. When the pilot bit breaks through the
pavement into the sub-grade there usually is a noticeable change in
the sound and the feel of the coring process, which can alert the
operator to the fact that the coring drum is about to cut through the
full pavement depth.
