Means for providing a vertical drain in soil

Details Means for providing a vertical drain in soil Means for providing a vertical drain in soil

1983-02-09

1984-05-22

Taylor, Dennis L.

Hydraulic and earth engineering

Drainage or irrigation

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

52158, 405 36, E02D 310

Patent

active

044498489

ABSTRACT:
Means for providing a vertical drain in soil, comprising a push tube to be pushed into the soil and which carries within itself a prefabricated drain provided with a plate-like anchor on the lower end, and which anchor rests against the lower end of the push tube, and keeps the prefabricated drain in its place when the push tube is pulled upwards. The difficulty lies in making sure that the anchor and the prefabricated drain really remain stationary also in soft soil. As taught by the invention, the lower end of the push tube is provided with at least one pouch-like pressure member located between said push tube and the anchor and inflatable by the aid of a pressurized fluid so that it will push the anchor off the lower end of the push tube and spread it out in an opened position.

REFERENCES:
patent: 2724441 (1955-11-01), Rogers
patent: 2765854 (1956-10-01), Lewis
patent: 2970651 (1961-02-01), Roberts
patent: 3055424 (1962-09-01), Allen
patent: 3478524 (1969-11-01), Hoppe
patent: 4166508 (1979-09-01), Berg

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