An underwater excavator comprising a modular non-metallic cofferdam wherein water under pressure exits from a plurality of nozzles along at least one side of the base of the cofferdam and a fluid driven eductor driven by pressurized fluid evacuates the suspended solids raised by the pressurized fluid that flows through the nozzles, with a plurality of small barrier nozzles located along one or more horizontal conduits used to sink the cofferdam.
申请公布号
US4408405(A)
申请公布日期
1983.10.11
申请号
US19810250471
申请日期
1981.04.02
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
发明人
WILLIAMS, HARRY S.;YATES, JAN B.;REIDY, JOHN J.;FACCINI, ERNEST;HILL, TERRY E.;SHAFLEY, WILLIAM K.