PATTERNS IN ACOUSTIC EMISSION OF SOILS ON THEIR FREEZING AND THAWING AS A FUNCTION OF BOTH CLAY CONTENT AND INTENSITY OF CRYOLOGICAL PROCESSES

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In this paper describes the results of experimental studies of thermally stimulated acoustic
emission (TAE) of soils of different material composition under various freezing conditions.
The possibility of using these studies for the assessment of clay content in the geomaterial under test which characterizes cohesive properties of soils has been shown. It has been found that the sample freezing rate does not affect the TAE nature, but has a proportional relationship with its level. Based on the TAE patterns established the numerical criterion of thawed soil structural stability assessment has been suggested. This criterion makes it possible to handle as a single set the results of TAE tests obtained on geomaterial samples of different mass at variable intensity of cryological processes occurring in them.

Keywords

Сryothermal exposure, soils, clay particles, experiment, acoustic emission, cohesive properties of soil, material composition.

Issue number: 7
Year: 2016
ISBN:
UDK: (534.6+ 53.082.4): 551.34
DOI:
Authors: Novikov E. A., Oshkin R. O.

About authors: Novikov E. A., Assistant Professor, e-mail: e.novikov@misis.ru, ftkp@mail.ru, Oshkin R. O., Student, National University of Science and Technology «MISiS», 119049, Moscow, Russia.

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