Earth dam protective covering

Details Earth dam protective covering Earth dam protective covering

1978-03-06

1980-01-22

Grosz, Alexander

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

405117, 405270, 428255, E02B 304, E02B 702, E02B 706

Patent

active

041847865

ABSTRACT:
Method and means for protecting earth dams from failure caused by overflow or internal (tunnel) erosion. The invention provides a barrier between the dam and the impounded water in the form of a water-impervious covering for the vulnerable surfaces of the dam. At the least the covering should sheathe the top and upstream face, but better protection is provided by extending the covering to the downstream surface. The covering is flexible to conform to the contours and surface irregularities of the dam, and anchoring means are provided to secure the covering to the dam and to prevent or minimize seepage.

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patent: 3474625 (1969-10-01), Draper et al.
patent: 3680319 (1972-08-01), Draper et al.
patent: 3885800 (1974-12-01), Ganzinotti
patent: 3938339 (1976-02-01), Gaudard
patent: 3993827 (1976-11-01), Dukert

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