DRAINAGE CASSETTE Russian patent published in 2012 - IPC E02B11/00 

FIELD: construction.

SUBSTANCE: drainage cassette comprises a cylindrical gabion from a flexible net filled with a filtering inertial filler, at the same time a perforated drainage pipe with water-receiving holes is arranged inside the cylindrical gabion, where it is rigidly fixed with the help of intermediate diaphragms, which have eye rings for transportation, at the edges the perforated drainage pipe is fixed with the help of end diaphragms, besides, the drainage cassette is made with the possibility of flexible connection by means of disconnecting sleeves with neighbouring drainage cassettes, the joint between which is protected with a plastic semi-ring against spillage of backfilling soil, and the outer surface of the drainage cassette is protected with a non-woven geotextile material, which is rigidly fixed at the edges to the perforated drainage pipe and the end diaphragm.

EFFECT: reduced time for drainage structures erection and their increased repairability.

4 dwg