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Title Transcription
Some mechanical properties of the Siwalik sandstones and their relation to petrographic properties
Title Alternative
Some mechanical properties of the Siwalik sandstones and their relation to petrographic properties
File
language
jpn
Author
NareshKaziTamrakar
Yokota, Shuichiro
Description
Some physical and mechanical indices of sandstone samples which were systematically collected from the Siwalik Group,in Mid Western Nepal,have been measured in a laboratory.The measurements show that the dry density of the Siwalik sandstones ranges 2.35 to 2.59 gr/cm^3,and porosity is between 2.88 and 7.68 %.The former is higher and the latter is lower in calcareous sandstone.Elastic wave velocity ranges from 1.59 to 4.36×10^3 m/sec,and the uniaxial compressive strength is of the order of 0.5 to 1.0×10^2 MPa.Both indices are higher in calcareous sandstone.These indicates that cement materials such as calcium carbonate fill voids among grains in calcareous sandstone.
Uniaxial compressive strength,elastic wave velocity and elastic modulus are closely correlated to each other,and they have negative curvilinear correlation with porosity.These physical and mechanical properties of sandstones closely depend on lithofacies and the contents of calcium carbonate,and are rather independent of stratigraphical horizon or deposition age.These results indicate that such properties reflect the sedimentary environments that were prevelant during the formation of the sandstones.
Journal Title
島根大学地球資源環境学研究報告
Volume
18
Start Page
41
End Page
54
ISSN
13439774
Published Date
1999-12-25
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+