Based on the theory of experiment planning using polurepliku five-factor experiment, conducted laboratory studies on the folder-diet tray obtained empirical relationship for determining the flow rate through the small holes in the polymer geomembrane. Performed to check the adequacy of the equation is obtained on the F-Fisher criterion, calculated significance of the knowledge-cheny consumption by Student t-test.

Keywords: geomembrane, impervious coating, flow, filtration, design of experiments

Due to the fact that currently seepage losses are significant, even with use of such geosynthetic materials like polymer geomembrane, evaluation of water permeability polymeric screens the presence of small lesions remains a major challenge. To simulate the filtration damage geosynthetic polymer screens use software package "Somsol multiphysics», allowing to solve both two-dimensional (plan) and three-dimensional (spatial) problem stationary and non-stationary filtration.

Keywords: water permeability, impervious screen, filtering, geosynthetics, geocomposites, geomembrane, modeling

The article presents data on the coefficient of performance (COP) of the existing irrigation systems, data on losses from irrigation channels and the distribution of their filtration. Examines the implications, fuss-tic at lower efficiency and as a result, filtration of water from irrigation canals-systems. A number of measures to reduce the loss of water through seepage from irrigation canals, including: maintenance, engineering and design activities.

Keywords: Filtration, irrigation system, coefficient of performance, protivofiltratcionnye activities, covering, cladding, screens, geosynthetics