SURFACE AND GROUND WATER DISCHARGE DEVICE Russian patent published in 2015 - IPC E02D31/02 

FIELD: construction.

SUBSTANCE: surface and ground water discharge device includes a longitudinal trench located along a slope of a road bed and at least one transverse trench on the high side and one transverse trench on the low side of the road bed, which are connected to the above longitudinal trench and located perpendicular to the road bed slope. The transverse trench on the high side and the transverse trench on the low side of the road bed are located in one cross section in each lowered part of relief. Longitudinal and transverse trenches are made to depth of a seasonal freezing layer and filled with drain soil. A heat-insulating layer is laid on each transverse trench.

EFFECT: increasing service life of a device, which exceeds standard service life, and preserving stability of a road bed owing to preventing deformations in the body of the road bed itself by providing free filtration of ground water through soils of the road bed from its high side to the low side.

1 dwg, 1 tbl