FIELD: construction.
SUBSTANCE: invention relates to the field of hydraulic engineering and may be used to eliminate filtration via a body of low-head dams of storage ponds, dams of river beds and canals. An anti-filtration membrane of low-head dams and dykes from soil materials includes a waterproof wall. The wall is assembled from boards of two types - A and B. Boards are made of polyolefine wastes. Boards have semi-cylindrical ledges and grooves. Boards of type A are equipped with a longitudinal cylindrical cavity and an inverse filter from geotextile. The inverse filter is arranged at sides of the membrane. It becomes possible to efficiently determine the position of a depression curve in the dam body.
EFFECT: increased operational reliability.
6 cl, 6 dwg
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