Accession Number : ADD008567

Title :   System for Placement of Piles into the Seafloor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Haynes,Harvey H

Report Date : 24 Mar 1981

Pagination or Media Count : 8

Abstract : The patent concerns a system for placing piles into the seafloor by using pressure differential as the driving force. The pressure differential is created by a pump unit located either within or external to the pile. Operation of the pump unit which displaces both water and soil across a bulk-head section, enables the pile to be driven into and under the seafloor. A section of piling with a pump unit can operate as an uplift anchor, and multiple pumps on a large diameter piling can be embedded into the sea-floor as a large foundation.

Descriptors :   *Patents, *Pile structures, Ocean bottom, Cylindrical bodies, Vacuum apparatus, Pistons, Hydraulic actuators, Hydrostatic pressure

Subject Categories : Civil Engineering
      Hydraulic and Pneumatic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE