Study of cohesive soil deformability in a compression apparatus of different designстатья
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Дата последнего поиска статьи во внешних источниках: 27 января 2018 г.
Аннотация:Compression test machines with a standard rigid soil ring are not free from shortcomings in design, the principle ones being possible jamming of the plate in the soil ring, existence of friction between the soil and the lateral surface of the rigid ring and consequently, a resulting non-uniformity in the stress-strain distribution throughout the sample.
The newly devised compression apparatus in Moscow University by Kalachev-Filimonov (κ ϕ-1) is free from the said drawbacks. Indices of compressibility determined for clayey soils in the (κ ϕ-1) compression apparatus are 17–57% lower (25% on average) than the values yielded by tests in standard device.
Utilization of this new compression test machine in defining collapsibility of loess soils is of great practical value as it permits more accurate classification of the soil properties.