Earth’s Cryosphere, 2023, Vol. XXVII, No. 1, p. 12-20.
PHYSICAL AND CHEMICAL PROCESSES IN FROZEN GROUND AND ICE
RESULTS OF PHYSICAL MODELING OF SOIL FREEZING
V.G. Cheverev1,*, A.V. Brushkov1, E.V. Safronov1, Yu.A. Kaynov2, A.L. Fedotov2
1 Lomonosov Moscow State University, Leninskie Gory 1, Moscow, 119991 Russia
2 Research Institute of Pipeline Transport, Sevastopolsky prosp. 47a, Moscow, 117186 Russia
*Corresponding author; e-mail: cheverev44@mail.ru
The article presents the results of physical modeling of soil freezing in laboratory. The samples of silty clay of kaolinite composition were used as model soil. The main characteristics of the component and phase composition of water, as well as the heat and mass transfer and deformation properties of the soil were experimentally determined. During the physical modeling, parameters of the freezing process, differential heaving of frozen and shrinkage of thawed zones, heat and moisture transfer, and pore pressure were monitored. The appearance of segregated ice in the freezing soil, layered axial and horizontal deformation, and the dynamics of density and water content of water-saturated soil samples over time were determined using position markers and time-lapse video.
Keywords: physical modeling, freezing, heaving, characteristics of silty clay, process parameters
Recommended citation: Ryzhov Yu.V., Kolomiets V.L., Smirnov M.V., 2023. Late Holocene cryogenic deformations in floodplain sediments of river valleys in the Selenga River basin. Earth’s Cryosphere XXVII (1), 3–11.