Procedure and means for providing a vertical drain in the bottom

Details Procedure and means for providing a vertical drain in the bottom Procedure and means for providing a vertical drain in the bottom

1982-12-08

1984-01-31

Taylor, Dennis L.

Hydraulic and earth engineering

Drainage or irrigation

Porous waterway, e.g., sand drain, etc.

111 1, 405 36, E02D 310, E21B 1900

Patent

active

044286996

ABSTRACT:
Procedure and means for making a vertical drain in the bottom of a water body, e.g. a sea or lake, from a raft on the surface of the water body. A conveying member, carried by the raft movably in vertical direction, is brought to be close to the bottom of the water body. A push tube, carried by the conveying member movably in vertical direction, is pushed into the soil layer on the bottom of the water body to desired depth, whereby the push tube carries along the prefabricated drain, provided with an anchor on its lower end, located therewith in. Thereafter, the push tube is pulled up, the strip drain remaining in its place in the soil layer by the aid of the anchor. The aim of the invention is to reduce the consumption of prefabricated drain material, to reduce the time consumed in the operation and to reduce energy consumption. The invention teaches to pull the push tube up above the lower end of the conveying member. Another anchor is affixed to the prefabricated drain by the aid of an affixing means, located on the lower end of the conveying member.

REFERENCES:
patent: 3300987 (1967-01-01), Maeda
patent: 3891186 (1975-06-01), Thorsell
patent: 3898940 (1975-08-01), Ede
patent: 4166508 (1979-09-01), van den Berg

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