Question

Define the meaning of the term “auger refusal”

Answer 1

If the rock is encountered during the boring then rock coring is required in each boring. Rock coring is not started until auger refusal is obtained. Auger refusal can be defined as penetration of auger less than 6 inches
under 500 psi of auger-feed down pressure for a duration not less than 10 minutes. Rock coring is not started or ended with weather shale or limestone.

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