WATER CONSTRUCTION IN ROAD BANK ON PERMAFROSTS Russian patent published in 2007 - IPC E01F5/00 

FIELD: arrangement of water constructions, in particular water pipes, under railway and truck road banks in permafrost regions.

SUBSTANCE: water construction has bank body made from drainage material and transport passage apparatus positioned on main bank ground. Water construction has water pipe positioned in lower part of bank body and transversely intersecting the latter. Water pipe is closed at its both ends with large-sized inclusions of bank drainage material. Maximum size of large bank drainage material inclusions at inlet and outlet ends of water pipe cavity is defined from cited formula.

EFFECT: enhanced reliability in operation of water construction by providing constant filtering flow of water in bank during summer period.

3 cl, 1 dwg