Device and method for drilling and compacting ground
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United States of America Patent
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Aug 20, 2013
Grant Date -
Dec 15, 2011
app pub date -
Jun 14, 2011
filing date -
Jun 14, 2010
priority date (Note) -
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Abstract
A device (1) for drilling and tamping grounds is constituted by a tamping tip (1A) rigidly connected to a shaft (3) which constitutes the connection to the end part of a battery of rods moved by a drilling machine, which gives it movement in a vertical direction and a rotation around its longitudinal axis. The battery of rods is inserted into a covering tube (14). Between the tamping tip (1A) and the tube (14) a substantially cylindrical tamping element (9, 9a) is interposed, adapted to define a tamping diameter of the ground which forms the walls of the hole obtained by the device (1) at least equal to the diameter of the tube (14).
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