AUTOMOBILE ROAD ON PERMAFROST

摘要

FIELD: construction.;SUBSTANCE: invention relates to construction and can be used for reconstruction and overhaul of motor roads on permafrost soils. Automobile road on permafrost soils under condition of non-uniformity of soils along the width of the base includes a roadbed and geo-synthetic material. In slope part of the roadbed on the side of the base with layers of frozen soil there is formed a thrust soil roll of mineral frost-free soil edged by reinforcing geo-synthetic material arranged in the underslope part of the motor road base and a part of the road bed slope in the form of a semi-collar in solid ice-soil mass formed as a result of action of heat stabilizers, submersed to the mark of permanently frozen soil super-face for fixing of reinforcing geo-synthetic material with pitch dependant on thermo-physical properties of bottom soil.;EFFECT: technical result consists in improvement of roadbed stability, reduction of vertical and horizontal deformations of the topping and bottom soil.;1 cl, 1 dwg