Effect of Freeze-Thaw Cycles on Mechanical Properties and Permeability of Red Sandstone under Triaxial Compression

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 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
刊名	Journal of Mountain Science
	2015-01
卷号	12 期号:1 页码:218-231
关键词	Freeze-thaw cycles Red sandstone Triaxial compression Permeability Mechanical properties
通讯作者	YU Jin
英文摘要	Geological 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.
收录类别	SCI
公开日期	2015-01-16
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/7704]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2015_Vol12 No.1
推荐引用方式 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.