... of natural structural planes. In this paper, the law of anisotropy characterized by wave velocity and its ratio of shale is summarized through the analysis for the velocity of P-wave and S-wave, the strength characteristics of shale under tension-shear condition is also obtained through the mechanical tests...

... Drillstem Testing velocity friction angle Strength Characteristic peak shear strength Upstream Oil & Gas formula drillstem/well testing expression total friction angle rock joint shear strength friction angle 13th international congress coefficient shear deformation velocity...

... microstructure. In other words, the microscopic problem plays a role of nonlinear constitutive law. In this study, a frictional contact model of a single crack is used in the microstructure. Then a method utilizing the localization process for evaluating the strength characteristics of the macro-body...

... geological modeling Simulation frequency distribution deformability Scan line cross section discontinuity rock mass variogram Upstream Oil & Gas variability Strength Characteristic geostatistical analysis spatial variation Characterization of rock mass by geostatistical analysis...

... effect heterogeneity Proportion echelle sur characteristic Upstream Oil & Gas elasticity LFJ irregularity deformabilite friction angle expression certain dimension dimension variation binomial expression rock mass plane surface Strength Characteristic probability deformability...

... of the sample in unconfined compression Rs: Table III strength characteristics of the rock mass in . unconfined compression accumulated by mining experience allows to recommend (Fadeev) the following Table of coefficients of-structural' weakening A - Rut/Rs. Table II Mci 4 4-8 8-12 12-14 ,14(degre 3.2.2...

... of dams: Krasnoyarskaya, Sayano - Shushenskaya and Zeyskaya (USSR). These results indicate the possibility of obtaining more reliable strength characteristics of rock masses at their contact with concrete structures. With the development of high concrete dam construction performed in complicated geologic...

... methaden mohr strength characteristic auf abb werden ligne limite envelope einfluss indirect method allure rissigkeit Zusammenfassung Es wurde auf die Unterschiedlichkeit zwischen der mechanischen Charakteristik des Gesteins und das Bergmassivs hingewiesen. Die Ursachen werden durch die...

...3.50 On the strength characteristics of a bedded rock Resistance caracteristique au rocher stratifie Festigkeitseigenschaft des vielschichtigen Gebirges by ~UMIOISHll, Head of Dam Department Public Works Research Institute, Ministry of Construction, 26 Kamifujimae, Bunkyo-ku, Tokyo, Japan...

... and laboratory tests which include the determination of deformative and strength characteristics of rock masses is performed for evaluating rock foundations for high dams and underground structures. In this paper there are some results of deformative and strength properties of chloritic schists under the action...