Sand pile driving method
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United States of America Patent
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Apr 19, 2005
Grant Date -
Dec 23, 2004
app pub date -
Jul 21, 2003
filing date -
Jun 19, 2003
priority date (Note) -
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Abstract
A sand pile driving method for making a sand pile which does not cause trouble in terms of strength even at a soft point in the actual ground, and enables secure limitation of the increase in total construction time and total amount of sand. A compaction procedure is a procedure for compacting a granule pile 15 by pressing and rotating the casing pipe 13 downward. This is performed based on thrust force P by which the casing pipe presses a granule pile and a driving torque T for rotating the casing pipe against a granule pile.
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