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Experimental investigation of mechanical properties of bedded salt rock
Liang, W.; Yang, C.; Zhao, Y.; Dusseault, M. B.; Liu, J.
2007
Source PublicationINTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
ISSN1365-1609
Volume44Issue:3Pages:400-411
Abstract

Because of salt cavern utilization for liquid, gas and solid waste storage, salt rock mechanical properties are needed for assessments of facility, stability and safety. Bedded salt deposits are widespread and used as much or more than diapiric salt bodies as storage facility hosts, but experimental data on the mechanical properties of bedded salt rock with impurities are far less common than data available on relatively pure diapiric, salt rocks. Through laboratory uniaxial and triaxial compression experiments on rock salt (halite), interlayers (anhydrite) and bedded composite specimens (anhydrite-halite and mudstone-halite), differences in mechanical properties of the various lithologics are explored. In the composite specimens, the weakest or the most deformable component governs the behavior. Also, the properties of bedded composite lithology specimens tend to be in between the property ranges of the "pure" lithologies. The elastic modulus of the bedded salt rock increases from 5.3 to 24.1 GPa with an increase in the confining stress from 0 to 15 MPa, with some evidence of sample damage. The ductile transition for halite at the strain rates used is at about sigma(3)similar to 10 MPa. With increasing sigma(3), the anhydrite-halite composite lithology deformation showed strain hardening and a strong trend to ductile behavior as the halite bands tended to dominate the behavior. Strain incompatibility effects exist along interfaces between creeping and non-creeping phases in anhydrite-halite composite lithologies. Mudstone-halite rocks tended to be extremely weak, compared with all other specimens. (c) 2006 Elsevier Ltd. All rights reserved.

KeywordBedded Salt Rock Anhydrite Mudstone Halite Mechanical Properties Salt Cavity Storage Rock Mechanics
DOI10.1016/j.ijrmms.2006.09.007
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Mining & Mineral Processing
WOS SubjectEngineering, Geological ; Mining & Mineral Processing
WOS IDWOS:000244217400005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:95[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/3161
Collection岩土力学所知识全产出_期刊论文
AffiliationTaiyuan Univ Technol, Mining Technol Inst; Chinese Acad Sci, Inst Rock & Soil Mech; Univ Waterloo, Dept Earth Sci
Recommended Citation
GB/T 7714
Liang, W.,Yang, C.,Zhao, Y.,et al. Experimental investigation of mechanical properties of bedded salt rock[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2007,44(3):400-411.
APA Liang, W.,Yang, C.,Zhao, Y.,Dusseault, M. B.,&Liu, J..(2007).Experimental investigation of mechanical properties of bedded salt rock.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,44(3),400-411.
MLA Liang, W.,et al."Experimental investigation of mechanical properties of bedded salt rock".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 44.3(2007):400-411.
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