DRAINAGE MODULE Russian patent published in 2025 - IPC E02B11/00 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to the field of hydraulic engineering and landscape improvement and can be used in drainage systems in ditches, in the drainage of foundations, retaining walls, roof drains, septic tanks, basements, and can also be used as an underground drainage system in the form of a dug drainage ditch, in which a drainage with a perforated pipe is laid, in a shell of granulated ethylene vinyl acetate and geotextile with subsequent backfilling with soil for removal of excess surface layer of water and ground water from drained surface to place of discharge. Drainage module comprises perforated drainage corrugated pipe arranged inside geotextile material, annular cavity between which is filled with filler. Geotextile material, which is a filter element, is made with possibility of filler retention, has density of 80-200 g/m² and is fixed to edges of perforated drainage corrugated pipe by fasteners. Outer surface of the perforated drainage corrugated pipe is coated with a geotextile material which is a filtering element configured to prevent clogging of the holes of the perforated drainage corrugated pipe. As filler the drainage module contains granular ethylene vinyl acetate (EVA) with granule size from 2 to 100 mm.

EFFECT: increased load capacity with simultaneous increase of throughput capacity, increased strength of drainage module.

9 cl, 2 dwg, 2 tbl