PROCESS OF ERECTION OF ROADBED Russian patent published in 2004 - IPC

FIELD: highway engineering. SUBSTANCE: invention deals with erection of road embankment\of roadbed in summer and winter seasons while building roads under conditions of marshes, permafrost, soft ground and in densely built territories. Process of erection of roadbed includes placement of embankment of roadbed in layers by delivery of ground to linearly-extended construction site for each technological layer by transport, for example, by dump trucks running along movement of technological flow, return of empty transport counter to movement of technological flow, laying of ground on foundation, spreading and compaction of ground with the help of construction machinery. Embankment of roadbed is erected step-by-step with use of plots. Prior to erection of each technological layer of roadbed on plot linearly-extended construction site is divided into two longitudinal lanes and roadbed is built one layer at time, first on one lane of plot while the other lane is utilized for movement of technological transport. Then this lane is used for erection and technological transport runs over first lane of roadbed. Ground is laid on constructed lane in front of construction machinery. Novelty of process consists in arrangement of longitudinal ramp after completion of each constructed lane, on erection of technological layer on it. Ramps are arranged with their displacement along roadbed and by height. In this case one longitudinal lane is erected wider than next by one and half meter as minimum. Wide and narrow lanes of plot alternate from layer to layer by height of filled embankment in staggered order. EFFECT: ensured uniformity of roadbed in respect to its density, high productivity of work, reduced labor and energy input under crowded conditions. 1 cl, 3 dwg