IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.1
Effect of Freeze-Thaw Cycles on Mechanical Properties and Permeability of Red Sandstone under Triaxial Compression
YU Jin; CHEN Xu; LI Hong; ZHOU Jia-wen; CAI Yan-yan
Corresponding AuthorYU Jin
2015-01
Source PublicationJournal of Mountain Science
Volume12Issue:1Pages:218-231
AbstractGeological disasters will happen in cold regions because of the effects of freeze-thaw cycles on rocks or soils, so studying the effects of these cycles on the mechanical characteristics and permeability properties of rocks is very important. In this study, red sandstone samples were frozen and thawed with 0, 4, 8 and 12 cycles, each cycle including 12 h of freezing and 12 h of thawing. The P-wave velocities of these samples were measured, and the mechanical properties and evolution of the steady-state permeabilities were investigated in a series of uniaxial and triaxial compression tests. Experimental results show that, with the increasing of cyclic freeze-thaw times, the P-wave velocity of the red sandstone decreases. The number of freeze-thaw cycles has a significant influence on the uniaxial compressive strength, elastic modulus, cohesion, and angle of internal friction. The evolution of permeability of the rock samples after cycles of freeze-thaw in a complete stress-strain process under triaxial compression is closely related to the variation of the microstructure in the rock. There is a highly corresponding relationship between volumetric strain and permeability with axial strain in all stages of the stress-strain behaviour.
KeywordFreeze-thaw Cycles Red Sandstone Triaxial Compression Permeability Mechanical Properties
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7704
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.1
Corresponding AuthorYU Jin
Recommended Citation
GB/T 7714
YU Jin,CHEN Xu,LI Hong,et al. Effect of Freeze-Thaw Cycles on Mechanical Properties and Permeability of Red Sandstone under Triaxial Compression[J]. Journal of Mountain Science,2015,12(1):218-231.
APA YU Jin,CHEN Xu,LI Hong,ZHOU Jia-wen,&CAI Yan-yan.(2015).Effect of Freeze-Thaw Cycles on Mechanical Properties and Permeability of Red Sandstone under Triaxial Compression.Journal of Mountain Science,12(1),218-231.
MLA YU Jin,et al."Effect of Freeze-Thaw Cycles on Mechanical Properties and Permeability of Red Sandstone under Triaxial Compression".Journal of Mountain Science 12.1(2015):218-231.
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