Impervious IRIS low-head dams of soil materials

摘要

1. The low-pressure diaphragm is impervious dams of soil materials comprising a waterproof wall, characterized in that the impervious diaphragm is assembled from plates, two types A and B, produced in the factory from waste polyolefins having respective semicylindrical protrusions and channels, wherein the plate type a equipped with a longitudinal cylindrical cavity for determining the water level in the body of the hydraulic structure during its operation, as well as inverse filter of geotextile, arranged on the side faces of the diaphragm and preventing soil removal; 2. Impervious diaphragm low pressure dams of soil materials according to claim 1, characterized in that it is arranged on the depth S = h +, where h - the vertical distance from the level of weir crest to place manifestations hearth filtration deformations on the lower slope, - penetration aperture received from 1.0 to 1.5 m depending on the height of the structure, and is placed in a trench formed on the crest of the water retaining structure; 3. Impervious diaphragm dams of soil materials according to claim 1, characterized in that semi-cylindrical projections and channels A and B slabs tightly contact each other to prevent them from shear during operation and penetration of leakage water into the lower bef.4. Impervious diaphragm dams of soil materials according to claim 1, characterized in that the longitudinal cylindrical cavity has, on one of the walls of the hole diameter 0.03 m, arranged with a distance between centers of 0.5 m; 5. Impervious diaphragm dams of soil