Temperature effects on the mechanical properties of slates in triaxial compression test

doi:https://doi.org/10.1007/s11629-016-4171-4

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-2017 > Vol14 No.12

	Temperature effects on the mechanical properties of slates in triaxial compression test
	MENG Lu-bo; LI Tian-bin; CAI Guo-jun
刊名	Journal of Mountain Science
	2017-12
卷号	14 期号:12 页码:2581-2588
关键词	Temperature Effect Slate Mechanical Feature Triaxial Test
ISSN号	1672-6316
DOI	https://doi.org/10.1007/s11629-016-4171-4
通讯作者	LI Tian-bin
文献子类	期刊论文
英文摘要	High geothermal temperatures appear to be unfavorable for the construction of tunnels in slate rocks with high overburden. To investigate the mechanical characteristics of slates at various levels of geothermal temperature, conventional triaxial compression tests at different levels of confining stress were carried out at 4 different temperatures from 20°C to 120°C. The obtained results show high confining pressures weaken the thermal effects on rock mechanical characteristics while higher temperatures enhance the effect of confining pressure. At higher levels of confining stress the thermal effects on the rock strength characteristics decrease. The higher the temperature, the larger is the effect of confining pressure on the mechanical characteristics of the slate.Increase of temperature leads to a decrease of the peak strength but increases the deformability and ductility of the slate, the thermo effect on the peak strength and Poisson's ratio is larger than on the elastic modulus. Higher temperatures reduce the shear strength ofslate,the decrease is mainly caused by a decrease of the cohesion.In general, the slate samples fail in shear failure.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/20644]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.12
推荐引用方式 GB/T 7714	MENG Lu-bo,LI Tian-bin,CAI Guo-jun. Temperature effects on the mechanical properties of slates in triaxial compression test[J]. Journal of Mountain Science,2017,14(12):2581-2588.
APA	MENG Lu-bo,LI Tian-bin,&CAI Guo-jun.(2017).Temperature effects on the mechanical properties of slates in triaxial compression test.Journal of Mountain Science,14(12),2581-2588.
MLA	MENG Lu-bo,et al."Temperature effects on the mechanical properties of slates in triaxial compression test".Journal of Mountain Science 14.12(2017):2581-2588.