Результаты компрессионных испытаний грунтов Беларуси
2009
Kostyukovich, P.N. | Kroshner, I.P., Belarussian National Technical Univ., Minsk (Belarus)
Compression tests of soils are among the most important laboratory methods used to assess to assess their compressive strength in the absence of lateral expansion and at a constant thickness of the compressed soil layer. The results of these tests provide an experimental ground to determine the physical and mechanical properties of soil strata and to forecast their settlement under the basement rock load. Therefore, to improve the geotechnical forecasts of the foundation settlement the data of research into the soil compaction in compression carried out in Belarus have been reviewed. An analysis showed that in most cases the compression of quaternary dust and fine sands, sandy loam, loam, clay and peat showing undisturbed structure and natural moisture content is described by a nonlinearly damped function epsilon (sigma), where the modulus of Hookean deformation epsilon sub(o) = beta sub(o) sigma/epsilon is linearly increased with increasing the compression value sigma. This relationship was used to construct an appropriate model providing a rather accurate forecast of the soil compaction in compression and of the foundation settlement
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