Method and apparatus for driving drain board

Tool driving or impacting – With indicating or signaling means

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Details

173 49, 405 50, E02B 1100

Patent

active

047459794

ABSTRACT:
This invention relates to a method and apparatus for simultaneously driving a plurality of drain boards, radially aligned about a common center, to stabilize and improve terrestrial and submarine foundation soils and submarine soils. This method, using standard width drain boards, can cover a wide absorption and drain area with a relatively small number of drain board driving operations.

REFERENCES:
patent: 3881319 (1975-05-01), Katagiri et al.
patent: 3973408 (1976-08-01), Paverman
patent: 4428699 (1984-01-01), Juhola
patent: 4622138 (1986-11-01), Wager

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