FIELD: construction.
SUBSTANCE: dam comprises an antifiltration element in the form of a core from clayey soil, upper and lower side prisms from macrofragmental soils, a head of nonfrost-susceptible soil, an asphalted road surface of a dam crest traffic area and sorted stones. Sorted stones are orderly laid onto a dam slope illuminated with sunlight from its crest to the specified level, where they form open pores between each other. Open pores are partially filled with a soil material. At the same time the following conditions are met: ωp>0.2D2 s and hf =(03-0.5)Hp, where ωp - area of open pore clear space along its depth; Ds - mean average diameter of stones that form an open pore; hf - height of open pore filling with soil material; Hp - open pore depth.
EFFECT: higher reliability of a dam due to prevention of permafrost formation in the upper part of its core.
5 cl, 2 dwg
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