Analysis and discussion of different methods of artificialice-high specimen preparation |
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| Authors: | ShuJuan Zhang Wei M ZhiZhong Sun HaiMin Du |
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| Affiliation: | State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China |
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| Abstract: | Because ice-high foundation soil is widely distributed in permafrost regions, the correct preparation of ice-high specimensis of critical interest in engineering design for foundation stability. Past research has shown that the uniaxial compressionstrength of ice-high frozen soils changes as the ice or total water content increases; the differences of different methods ofspecimen preparation are analyzed here and the advantages and disadvantages of them are presented. It is confirmed thatthe role of crushed ice is significantly different from that of naturally frozen ice in frozen soils, and the size and amount ofcrushed ice will influence the strength and deformation mechanism of frozen soils. Therefore, it is strongly recommendedthat when a ice-high specimen is artificially prepared, the ice should be frozen through natural means and not be replacedwith crushed ice. |
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| Keywords: | ice-high specimen artificial preparation method strength deformation |
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