Piledriving

Details Piledriving Piledriving

1975-03-28

1976-08-24

Shapiro, Jacob

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

173DIG2, 181 36R, 181 36A, E02D 702, F01N 306

Patent

active

039759180

ABSTRACT:
Noise radiated into the atmosphere from a pile during pile-driving is inhibited by a tubular cover of flexible material having internal dimensions sufficient to pass, with an intervening air space, over a pile to be driven and an extended length sufficient to enclose a pile over its entire length, said cover being suspended from a hammer driving unit or a pile cap and being axially collapsible to reduce its length as the hammer driving unit or pile cap moves downwards while a pile enclosed in the cover is being driven into the ground.

REFERENCES:
patent: 2122517 (1938-07-01), Curtis
patent: 3667571 (1972-06-01), Fattelay
patent: 3757891 (1973-09-01), Krieger

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