IMPERVIOUS CANAL LININGS USING GEOSYNTHETIC MATERIALS

Purpose: justification of irrigation canal impervious linings use with new materials and methods for their calculation. Materials methods. The proposed improved designs canals were the research. To determine specific filtration flow, calculation free backed concrete-film damage in polymer geomembrane, taking into account moisture contours partial soil saturation water at base used. Results. Among considered linings, best indicators obtained bentonite mats a protective coating rockfill geotextile. bentomat is distinguished by its ability to regenerate (self-healing), which ensures creation reliable lining high impermeability. calculations BSK-III made it possible losses filtration, amounted 9.72 sq. m/day, deviation results from experimental values 7.0 %. Conclusions. Six geomembrane coatings concrete are presented, as well through lining. An analysis calculated data showed that takes place two channels - Main Kakhovskiy, this confirmed significant depth groundwater (more than 15–30 m); on other objects, 2 7 m observed.