MOTOR ROAD Russian patent published in 2004 - IPC

FIELD: road building, particularly for preventing pavement overwetting in spring-and-fall periods.

SUBSTANCE: motor road includes road bed, pavement layers and additional draining layer. Central area of draining level located under pavement has reverse slope corresponding to that of pavement. Vertical hollow drainage pipe is installed in additional draining layer base along longitudinal road axis. Drainage pipe has orifices for ice water. Bottom drainage pipe part is located in water-bearing stratum under ground freezing layer. Top drainage pipe part is closed and located at level of middle additional drainage layer part.

EFFECT: reduced time of traffic flow restriction due to ice water removal from running ground.

2 dwg