Accession Number : ADD011050

Title :   Water Jet Sediment Probe.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Malloy,R J

Report Date : 28 Feb 1984

Pagination or Media Count : 4

Abstract : It is an object of the invention to provide a water jet sediment probe system whereby one person can bore deep holes exceeding ten feet in depth. The sediment probe of this invention provides means for making a flexible hose rigid, one portion at a time, so that it can be spudded into the sediment without the need to start with one rigid piece of pipe that is as long as the desired hole depth. A flexible hose is attached to an initial length of pipe which includes the probe tip and a pumping means is provided to pump water under pressure through the flexible hose and out through the probe tip. A series of short rigid rod or pipe sections are attached adjacent to or about the flexible hose at regular intervals as it is spudded into the sediment to provide the required rigidity along the entire length f the probe until the desired hole depth is reached. This system permits one person handling only short sections of rod, pipe, or split pipe to probe or jet-in a hold of indefinite depth without having to raise and use a rigid pipe as long as the desired depth of the hole. The system is operable for use on land or by divers underwater.

Descriptors :   *Patents, *Probes, *Water jets, *Hoses, *Underbottom, Sediments, Water pipes, Flexible structures, Bores, Stiffening, Sand, Thickness, Underground, Ocean bottom soils, Rigidity

Subject Categories : Civil Engineering
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE