IMHE OpenIR  > 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
Corresponding AuthorLI Tian-bin
2017-12
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:12Pages:2581-2588
Subtype期刊论文
AbstractHigh 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.
KeywordTemperature Effect Slate Mechanical Feature Triaxial Test
DOIhttps://doi.org/10.1007/s11629-016-4171-4
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20644
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.12
Recommended Citation
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.
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