Journal Published Online: 16 June 2023
Volume 51, Issue 6

Testing and Characterization of the Freeze–Thawing Effect on the Morphology of Quartz Sand

CODEN: JTEVAB

Abstract

This research aimed to investigate the morphological changes of sandy soils with a varying number of freeze–thaw cycles (FTCs). The primary objective was to characterize the changes in particle morphology and establish the relationship between the number of FTCs and these changes. Two variables, namely the amount of variation and the coefficient of variation, were introduced as parameters to characterize the morphological changes of sandy soils. Statistical analysis was performed using the PIP9.1 particle dynamic image analyzer to quantify the morphological characteristics of sandy soil particles. The results showed that the five morphological characteristic parameters of sandy soil particles conformed to a normal distribution. The particle shape was primarily blocky, and sandy soil particles appeared more broken and regular in shape with an increase in the number of FTCs. The coefficients of variation of particle filling exhibit “conjugate” changes with other indicators, and the coefficients of variation of each indicator decrease gradually with an increase in the number of FTCs. Principal component analysis was employed to integrate information on sandy soil particle shape, resulting in a new index that established the relationship between the index and the number of FTCs. The findings of this study provide a better understanding of the morphological changes in sandy soils under freeze–thaw conditions and offer insight into the stability of sandy soils under these conditions.

Author Information

Liu, Qi
School of Civil Engineering, Northeast Forestry University, Harbin, P.R. of China School of Civil Engineering, Permafrost Institute, Northeast Forestry University, Harbin, P.R. of China Institute of Cold Regions Science and Engineering, Northeast Forestry University, Harbin, P.R. of China Northeast-China Observatory and Research-Station of Permafrost Geo-Environment of the Ministry of Education, Northeast Forestry University, Harbin, P.R. of China
Zhang, Ze
School of Civil Engineering, Northeast Forestry University, Harbin, P.R. of China School of Civil Engineering, Permafrost Institute, Northeast Forestry University, Harbin, P.R. of China Institute of Cold Regions Science and Engineering, Northeast Forestry University, Harbin, P.R. of China Northeast-China Observatory and Research-Station of Permafrost Geo-Environment of the Ministry of Education, Northeast Forestry University, Harbin, P.R. of China State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou, Gansu, People’s Republic of China
Zhang, Shengrong
School of Civil Engineering, Northeast Forestry University, Harbin, P.R. of China School of Civil Engineering, Permafrost Institute, Northeast Forestry University, Harbin, P.R. of China Institute of Cold Regions Science and Engineering, Northeast Forestry University, Harbin, P.R. of China Northeast-China Observatory and Research-Station of Permafrost Geo-Environment of the Ministry of Education, Northeast Forestry University, Harbin, P.R. of China State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou, Gansu, People’s Republic of China
Brouchkov, Anatoli
Department of Geocryology, Faculty of Geology, Lomonosov Moscow State University, Moscow, Russian Federation
Meng, Xiangxi
School of Civil Engineering, Northeast Forestry University, Harbin, P.R. of China School of Civil Engineering, Permafrost Institute, Northeast Forestry University, Harbin, P.R. of China Institute of Cold Regions Science and Engineering, Northeast Forestry University, Harbin, P.R. of China Northeast-China Observatory and Research-Station of Permafrost Geo-Environment of the Ministry of Education, Northeast Forestry University, Harbin, P.R. of China
Melnikov, Andrey
Melnikov Permafrost Institute, Siberian Branch, Russian Academy of Science, Yakutsk, Russian Federation
Gagarin, Leonid
Melnikov Permafrost Institute, Siberian Branch, Russian Academy of Science, Yakutsk, Russian Federation
Pages: 16
Price: $25.00
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Stock #: JTE20220708
ISSN: 0090-3973
DOI: 10.1520/JTE20220708