Variation of mechanical parameters of a slightly weathered joint in granite estimated from fourteen shear tests
2010 (English)In: ROCK MECHANICS IN CIVIL AND ENVIRONMENTAL ENGINEERING, 2010, 223-226 p.Conference paper (Refereed)
Describing the mechanical parameters of a rock joint with single values is difficult since rock has a natural spatial variation. In addition to this, the interpretation of the results is dependent on the number of tests. Despite this fact, input data for these parameters are often given with a deterministic value. This paper presents the results of fourteen shear tests tested under a constant normal stress of approximately 0.8 MPa. The samples were taken from a slightly weathered rock joint in granite. Basic friction angle and dilation angle, together with shear and normal stiffness, are evaluated. Based on the results, mean values and standard deviations together with coefficient of variations for the different parameters are presented. After that, different statistical distributions for the parameters are compared. Finally, the results are compared against calculated values derived from commonly used equations.
Place, publisher, year, edition, pages
2010. 223-226 p.
STRENGTH CRITERION, JMC
Mineral and Mine Engineering
IdentifiersURN: urn:nbn:se:kth:diva-35139ISI: 000290917200046ScopusID: 2-s2.0-84860198792ISBN: 978-0-415-58654-2OAI: oai:DiVA.org:kth-35139DiVA: diva2:426120
QC 201106222011-06-222011-06-202011-06-22Bibliographically approved