METHOD TO DETERMINE FROST HEAVE OF SOIL DURING FREEZING OF SEASONALLY THAWING LAYER

摘要

FIELD: construction.;SUBSTANCE: method to determine frost heave of soil during freezing of a seasonally thawing layer includes drilling of a well before start of its thawing, sampling of soil, measurement of depth of seasonal thawing ξ, definition of dry soil density in samples ρ_d,th. In addition wells are drilled after freezing of the seasonally thawing layer, on the samples they additionally define density of dry soil after freezing of the seasonally thawing layer ρ_d,f, and the heave value is determined in accordance with the given dependence.;EFFECT: reduced labour intensiveness of works, increased accuracy of determination of heaving value, provision of material intensity reduction.