METHOD FOR PILE DISMANTLING AND AUGER DRILL FOR ITS IMPLEMENTATION

摘要

Method for pile dismantling includes extraction of pile by means of lifting unit, at that before pile extraction in coaxial position with respect to it one installs auger drill and drills well round pile stem with it. Well round pile stem is drilled in its whole length. The drill has cross-section as a ring with inner diameter larger than maximal dimension of cross section of the pile 1.05- 1.5 times. Usually auger drill has pipe on which auger is winded, tail element and cutting section arranged as drill teeth placed in circle. Use of group of inventions makes it possible to decrease substantially forces needed for extraction of pile, with decrease of tension of pile itself stretching, as the result - to decrease power consumption of the method and to prevent break of piles.