ROAD EMBANKMENT BUILT ON PERMAFROST GROUND

摘要

FIELD: building, particularly for constructing road embankments on permafrost ground bases.;SUBSTANCE: road embankment comprises embankment body laid on natural ground surface, ballast section formed on the main embankment area and heat insulation layer. Road embankment has side auxiliary ground bodies with heights of not less than 0.3 m and B_b widths located within the boundaries of the main embankment area, slopes thereof and on horizontal area of natural ground surface at embankment slope base from ballast section sides. Heat insulation layer with R_h thermal resistance is located on leveling layer of dry frozen sand immediately under side auxiliary ground body. B_b is determined from specified condition.;EFFECT: increased stability and durability of embankment built on permafrost ground under heavy drift-snow transport conditions, simplified perennial technology of building thereof and extended range or local permafrost ground application.;3 cl, 5 dwg