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Keywords: expression
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-609
... variable method (Muskhelishvili, 1964). complex variable solution boundary condition expression tunnel trough depth tunnel boundary settlement trough tunnel lining equation displacement shallow tunnel ovalization Verruijt expansion contraction coefficient circular tunnel A...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-207
... geometric characteristic characteristic evaluation rock mass numerical method mean value deformability modulus displacement discontinuity open crack numerical analysis discontinuity assumption analytical solution natural discontinuity crack length specimen MPa expression fracture density...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-183
... s tr y , 1 6 4 6 A b ik o , A b ik o - s h i ,C h ib a- k e n 2 7 0 - 1 1 9 4 J ap a n Figure 2 : Failure envelopes of various materials tested as expressed by the proposed criterion o f p e r v i o u s z o n e a n d c o r e z o n e m a t e r i a l s a r e s h o w n i n F i g u r e 1 . T h e d i m e...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-185
... of suction caisson under uplift loading is included, and results of finite element modelling are presented. A simplified method for the estimation of the uplift capacity for suction caissons is described, based on the results of the finite element study. The expressions developed in this paper take...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-041
...SHEAR STRENGTH OF GEOMATERIALS - A BRIEF HISTORICAL PERSPECTIVE Richard H.G. Parry 1 ABSTRACT Although the shear strength expression proposed by Coulomb (1776) for masonry, brick and earth, made up of cohesion and friction components, is still in general use today, it was not until Terzaghi (1936...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-082
... reservoir geomechanics displacement borulev coefficient Reservoir Characterization Upstream Oil & Gas dimension contour excavation expression metals & mining excavation contour formula stability failure process Rock Excavation Destruction propagation destruction...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-005
..., without regard to the extent of the individual joints of the set. The general expressions, giving the intensity of a joint set as a function of the sum of the trace lengths of its joints on an observation surface, as well as the formulas for the usual types of observation surfaces - limited adit stretches...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 31–September 3, 1986
Paper Number: ISRM-IS-1986-010
... rock mass or several of its units are thinly layered and the thickness and deformability properties of the horizontal layers vary appreciably with depth. Reservoir Characterization Thickness plane expression coordinate system reservoir geomechanics variation gravitational loading rock...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-071
...-situ deformation tests have shown that the rock masses yield the law of anisotropic elasto-plastic media. In some cases, the anisotropic behaviour does not obviously express and the rock masses can be approximately treated as the isotropic elasto-plastic media. This paper presents a method dealing with...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-103
..., possessing viscous-elastic properties, the relationship between stress tensor and deformations can be expressed in the following integral form [3], (4]: (Equation in full paper) For a function, describing creeping of the rocks under consideration a modified expression for the Abel's nucleous in the case of...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-101
... Upstream Oil & Gas Frictional Resistance rock cutting rake angle diagram strength tool edge metal friction cross-section amonton frictional mechanism mechanism Nishimatsu expression obliquity friction resistance initiation asperity macroscopic failure crack...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-112
... expression for the settlement of foun4ation due to closure of discontinui- ties, Sd' can be written as n S =E 4z d 1=1 JT(2 + ~i (6 ) R X zi ) (1 + 9 I'F FR 1 2 (1 + OvKi~ Ki) where n - the IlIDber of dipcontinuities present in an effeotive depth equal to twioe the d1smeter of the foundation, R = i/rF f...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 27–29, 1978
Paper Number: ISRM-IS-1978-024
... Upstream Oil & Gas dynamic stress detonation expression Reservoir Characterization criterion characteristic impedance damage criterion tensile strength dynamic tensile strength particle velocity criteria charge weight rock mass ground vibration strength Rock mechanics...

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