Abstract
A portable tilting table can determine the friction angles of smooth surfaces of discontinuities for the assessment of rock slope stability. The lower bound of tests on sandstones is close to the upper bound of results from surfaces lapped with #80 grit, which give basic friction angles. Siltstones and shales can also be tested at the site when specimens may not survive transportation to the laboratory.
Résumé
On peut déterminer les angles de frottements des discontinuités lisses en utilisant une table portative qui pivote. Les résultats permettent l'évaluation de la stabilité des massifs rocheux qui contiennent ces discontinuités. La limite inférieure des essais sur des grès approche la limite supérieure de l'angle de frottement fondamental. Les échantillons fragiles de schistes ne résistent pas à leur transport au laboratoire; mais on peut évaluer ces roches sur le terrain.
Similar content being viewed by others
References
BARTON N.R. and CHOUBEY V., 1977: The shear strength of rock joints in theory and practice, Rock Mechanics, 10 pp. 1–54.
BRUCE I.G., CRUDEN D.M., and EATON T.M., 1989: Use of a tilting table to determine the basic friction angle of hard rock samples, Canadian Geotechnical Journal, 26 pp. 474–479.
CAWSEY D.C. and FARRAR N.S., 1976: Simple apparatus for finding rock joint friction, Geotechnique, 26, pp. 382–386.
CRUDEN D.M. and HU X.Q., 1988: Basic friction angles of carbonate rocks from Kananaskis Country, Canada, Bulletin of the International Association of EngineeringGeology, 38, pp. 1147–1152.
HERGET G., 1977: Pit Slope Manual Chapter 2-Structural Geology. CANMET, CANMET report 77-41, 123 p.
HOEK E. and BRAY J., 1974: Rock slope engineering, Institute of Mining and Metallurgy, London, U.K., 358 p.
HU, X.Q., 1991: Rock slope movements in Kananaskis Country, Ph.D. thesis, University of Alberta, Edmonton, Alberta, Canada, 206 p.
HU X.Q. and CRUDEN D.M., 1991: Topples on underdip slopes in the Highwood Pass, Alberta, Quarterly Journal of Engineering Geology,submitted.
IRISH E.J.W., 1965: Geology of the Rocky Mountain Foothills, Alberta, Geological Survey of Canada, Memoir 334.
PITEAU D.R., 1973: Characterizing and extrapolating rock joint properties in engineering practice, Rock mechanics. Supplement 2, 31 p.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Xian-Qin, H., Cruden, D.M. A portable tilting table for on-site tests of the friction angles of discontinuities in rock masses. Bulletin of the International Association of Engineering Geology 46, 59–62 (1992). https://doi.org/10.1007/BF02595034
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02595034