DRAINAGE DEVICE WITH SPACER SCREEN Russian patent published in 2014 - IPC E02B11/00 

FIELD: construction.

SUBSTANCE: invention relates to land reclamation construction and may be used in construction of drainage systems on heavy grounds. The drainage device with the spacer screen comprises a perforated pipe laid onto a drainage cushion, a water impermeable screen made as interrupted in length and a drainage filler from filtering material in areas of screen break. The screen is made as arched from elastic plastic rectangular plates by means of elastic curve and fixation of their edges on walls of the trench at the level of the height of the drainage cushion laid at the bottom of the trench.

EFFECT: increased reliability of device operation during deformations of structurally unstable soils.

2 dwg