pile extractor
pile extractor
[′pīl ik‚strak·tər] (mechanical engineering)
A pile hammer which strikes the pile upward so as to loosen its grip and remove it from the ground.
A vibratory hammer which loosens the pile by high-frequency jarring.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
pile extractor
A machine for pulling piles from the ground, e.g., by means of a double-acting pile hammer attached to a pile, each blow of which produces an upward force on the pile.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.