FIELD: machine building.
SUBSTANCE: invention can be used to drain water from the roadbed and other bulk structures. Method of constructing the drainage structure includes the formation of a channel with the subsequent laying along the bed of a protective covering in the form of a flexible material with the formation of protrusions above the bottom surface of the bed. Protrusions are made of perforated split pneumatic machines, which are located on the bottom of the bed alternating successively stepped protrusions. Outer circumference of the pneumatic bodies has a hemisphere directed by a convex upward in the cross section. Lower end face of the pneumatic bushes is fixed by a plate relative to the bed bottom.
EFFECT: reduction of labor input.
1 cl, 4 dwg
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