WAY OF VERTICAL-ANGULAR DRAINAGE Russian patent published in 2003 - IPC

FIELD: highway engineering, protection of upper part of roadbed against excessive humidification. SUBSTANCE: way of vertical-angular drainage includes migration of moisture over drainpipes. Specific feature of invention lies in that vertical-angular drainpipes filled with porous material function as drainpipes directed into body of roadbed and installed at angle with axis of horizon. Angle of arrangement of vertical-angular drainpipes, their number and diameter depend on peak of level of ground water which should be lowered and on its volume. EFFECT: preservation of existing roadbed with use of vertical-angular drainage. 4 dwg