... will be helpful to more accurately interpret the fracture behavior. Keywords rock mechanics, microscopic fracture toughness, granite, mineral grain, size effect Introduction The utilization of underground resources has become diversified, enlarged, and complex, e.g., exploitation of energy resources (geothermal...

... stress conditions for an assembly of 4,000 rock blocks demonstrate the system s versatility and provide unprecedented information related to long-wavelength propagation in fractured rock under various stress anisotropies. Keywords geophysics, rock mechanics, hydraulic fracturing, true triaxial, fractured...

... specimens printed vertical to the axial direction mechanical properties and failure forms as the weak rock specimens. Altogether, the results indicated that PIB specimens are optimal for simulating weak rock materials. 27 07 2016 06 01 2017 16 02 2017 rock mechanics 3D printing 3D...

... triaxial apparatus plane strain compression digital image correlation DIC rock mechanics strain localization full-field measurement failure References Bésuelle , P. , Desrues , J. , and Raynaud , S. , 2000 , “ Experimental Characterisation of the Localisation Phenomenon Inside...

... that was created during construction of the block. As a final test, the method successfully imaged the failure crack in a rock beam under static loading. wave propagation rock mechanics geophysics acoustic imaging fracture material testing References Achenbach , J. D. and Zhang , C...

... , “ A Novel Approach to Stress Measurements in Rocksalt ,” International Journal of Rock Mechanics and Mining Sciences and Geomechanical Abstracts , Vol. 27 , No. 2 , pp. 95 - 107 . Goodman , R. E. , Van , T. K. , and Heuze , F. E. , 1968 “ Measurement of Rock Deformability in Boreholes...

... strength dilation drilled shafts laboratories rock mechanics rock joints References Goodman , R. E. and Ohnishi , Y. , “ Undrained Shear Testing of Jointed Rock ,” Rock Mechanics   0035-7448 , Vol. 5 , No. 3 , 1973 , pp. 129 - 149 . Grishin , M. M. and Evdokinov...

... to carry out routine measurements for scientific consulting. dynamics elastic modulus earthquakes rock mechanics particle sizes resonant column tests References Drnevich , V. P. , “ Resonant-Column Testing—Problems and Solutions ,” Dynamic Geotechnical Testing , STP 654 , American...

... outlines a suggested procedure for testing with the NX-jack, and analyzing the test results in a medium which is assumed to be isotropic, linear, clastic, and homogeneous. rocks rock mechanics boreholes jacks modulus References Goodman , R. E. , Van , T. K. , and Heuze , F. E...

... higher rebound hardness values. It is also easier and more economical to build. These qualities indicate that the V-notch holder would be a better selection for conventional use. rock mechanics hardness tests rock testing Schmidt hammer rebound hardness test holders References Brown...

... in Uniaxial Compression (D 3148). compression rocks test specimens pore pressures rock mechanics SUGGESTED METHOD Charles J. Haas I Proposed New Standard Test Method for Dimensional and Shape Tolerances of Rock Core Specimens REFERENCE: Haas, C. J., "ProposedNew Standard Test Method for Dimensional...

... the regression analysis. Sample problems in BASIC, which can be used with desktop computers, are described. Typical examples from soil mechanics and rock mechanics are included. TECHNICAL NOTE ouglas Frink1and Panchanatham N. Sundaram 1 Regression Analysisof Experimental Data Using Desktop Computers REFERENCE...

... by loose particles or other debris, the flow rate may be substantially underestimated. KEYWORDS: electrical analogy, rock mechanics, hydraulics, electrical equipment, rock fractures, radial hydraulic flow, contact area, injection A wide range of techniques is available for the study of fluid flow through...

... of simplicity, cheapness, and accuracy of determination. Some design aspects of this tester in its present state of development are considered. KEYWORDS: rocks, rock mechanics, testing machines, rock cores, testing methods, rock properties egy whereby two-, three-, and four-point loadings are used to determine...

..., and standard gradations should be utilized whenever cost-effective. rocks rock mechanics erosion control riprap quarrying bedding planes SUGGESTED METHOD C. R. M a r e k 1 Proposed Standard Specification for Standard Sizes of Quarried Stone for Erosion Control REFERENCE: Marek, C. R., "Proposed...

... were found to be the dominating factor in determining the sensitivity of the stressmeter. The stressmeter is more sensitive in soft rock, such as coal, than in hard rock, such as sandstone. rock mechanics mining engineering stress analysis costs stressmeter stress change strain rosette steel...

... Disaggreation of Sandstones and Siltstones ,” Journal of Sedimentary Petrology , Vol. 39 , No. 1 , 03 1969 , pp. 375 - 378 . Jumikis , A. R. , “ Some Engineering Aspects of Brunswick Shale ,” in Proceedings of the First Congress of the International Society of Rock Mechanics , Vol. 1 , Theme 2...

... measurements taken during the compression tests on the granite revealed strength values that were remarkably independent of the unavoidable eccentricities of the sample loads. rock mechanics tensile strength compressive strength eccentric loading References Wijk , G. , Rehbinder , G...

... Strength for Bohus Granite ,” Rock Mechanics   0035-7448 , Vol. 10 , No. 4 , 04 1978 , pp. 201 - 219 . Wijk , G. , “ Tensile Strength—Sample Size Relations for Two Rocks ,” Report DS 1979:3, Swedish Detonic Research Foundation , Stockholm, 1979 . Wijk , G. , “ The Tensile Stress...

... the Uniaxial Compressive Strength of Rock Materials and the Point Load Strength Index ,” Document 1, International Society of Rock Mechanics, Committee on Laboratory Tests , Lisbon, Portugal , 1972 . Wijk , G. , “ Some New Theoretical Aspects of Indirect Measurements of the Tensile Strength of Rock...