Procedure for providing a vertical drain

Abstract

Procedure for providing a vertical drain, by means of pushing a push tube (7) into the bottom of a water body, carrying with it a so-called prefabricated drain (9) within it, the lower end of said drain being provided with an anchor plate (4), which, while the push tube is being pushed, closes the aperture on the lower end of the push tube, by means of pulling the push tube up, whereby the prefabricated drain remains in its place by action of the anchor plate, and by means of cutting the prefabricated drain at is upper end. The invention teaches to prevent surrounding soil matter from entering the push tube when it is drawn upwards. As taught by the invention, a push tube (7) is employed which is provided with holes (12) so that water flows into the tube from the surrounding water body. <IMAGE>

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    EP-0154951-A2September 18, 1985Phoenix Engineering Ltd.Verfahren und Vorrichtung zum Herstellen eines Grunddammes unter Wasser
    EP-0154951-A3December 30, 1986Phoenix Engineering Ltd.Method and apparatus for constructing an underwater fill