Anisotropic Nature of Jointed Rock Mass Strength
Publication: Journal of Engineering Mechanics
Volume 115, Issue 3
Abstract
Analytical models that describe the strength of jointed rock under a wide variety of multiaxial states of stress with one or two components being tensile are presented. The intact rock is. isotropic and its strength is described by a Hoek and Brown criterion. The joints have zero tensile strength and a shear strength defined by a Coulomb criterion. The strength of jointed rock is represented by superposition of the intact rock and joint failure surfaces and the joint nonnegative normal stress condition in a coordinate system having two stress ratios as a measure of distance along the coordinate axes. The symmetry of the intact rock failure surface in this coordinate system is lost because of the directional nature of joint strength. The anisotropic strength reduction associated with the joints and the influence of the intermediate stress on the strength of regularly jointed rock are analyzed. The effect of water pressure on jointed rock strength is also addressed.
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References
1.
Amadei, B. (1988). “Strength of a regularly jointed rock mass under biaxial and axisymmetric loading conditions.” Int. Rock Mech. and Mining Sci., 25(1), 3–14.
2.
Bray, J. W. (1967). “A study of jointed and fractured rock. Part I: Fracture patterns and their failure characteristics.” Rock Mech. and Engrg. Geol., V/2–3, 117–136.
3.
Brown, E. T. (1970). “Strength and models of rock with intermittent joints.” J. Soil Mech. and Found. Div., ASCE, 96(SM6), 1917–1934.
4.
Durfee, W. H. (1971). “Calculus and analytic geometry.” McGraw‐Hill, New York, N.Y.
5.
Einstein, H. H., and Hirschfield, R. C. (1973). “Model studies on mechanics of jointed rock.” J. Soil Mech. and Found. Div., ASCE, 99(SM3), 229–248.
6.
Goodman, R. E. (1980). “Introduction to rock mechanics.” Wiley, New York, N.Y.
7.
Hoek, E. (1983). “Strength of jointed rock masses.” Geotechnique 33(3), 187–223.
8.
Hoek, E., and Brown, E. T. (1980). “Empirical strength criterion for rock masses.” J. Geotech. Engrg. Div., ASCE, 106(GT9), 1013–1035.
9.
Jaeger, J. C. (1960). “Shear failure of anisotropic rocks.” Geol. Mag., 97, 65–78.
10.
Ladanyi, B., and Archambault, G. (1972). “Evaluation de la resistance au cisaillement d'un massif rocheux fragmente.” Proc. 24th Int. Geol. Congress, Montreal, Section 13D, 249–260 (in French).
11.
Mogi, K. (1966). “Pressure dependence of rock strength and transition from brittle fracture to ductile flow.” Bull. Earthquake Res. Inst. Japan, 44, 215–232.
12.
Reik, G., and Zacas, M. (1978). “Strength and deformation characteristics of jointed media in true triaxial compression.” Int. J. of Rock Mech. and Mining Sci., 15(6), 295–303.
13.
Robison, M. J. (1985). “The strength of Indiana limestone under multiaxial loading conditions.” Thesis presented to the University of Colorado, at Boulder, Colo., in partial fulfillment of the requirements for the degree of Master of Science.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 115 • Issue 3 • March 1989
Pages: 525 - 542
Copyright
Copyright © 1989 ASCE.
History
Published online: Mar 1, 1989
Published in print: Mar 1989
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