Underwater construction tasks frequently require the removal of seafloor sand and sediment. An experimental sediment excavation tool was fabricated from commercially available and specially designed components. The diver-operated tool combined a jet-eductor, a jet nozzle, and a hydraulically powered sump pump into a jet-dredge tool to increase excavation rates, reduce reaction forces, and improve water visibility in jetting operations. A later version included multi-jet nozzles rather than a single jet nozzle. Engineering tests of the experimental tool and all candidate components were conducted. The test results are presented in this document and show that the tool is effective. The next step in development is suitable engineering design for use by Fleet units.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Diver-operated sediment excavation tool


    Additional title:

    Taucherbedientes Sediment-Baggerwerkzeug


    Contributors:
    Thomson, H. (author)

    Published in:

    Publication date :

    1983


    Size :

    61 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English