... through an integrated data-base. The authors studied the relations between RMR value and the rock mass properties such as unit weight, deformation modulus, uniaxial compressive strength, friction angle, elastic wave velocity. Several direct empirical relations between the properties and RMR value...

...). A review of the development of the criterion and the equations proposed at various stages in this development is given in Hoek and Brown (1997). 2.0 ESTIMATE OF ROCK MASS PROPERTIES The basic input consists of estimates or measurements of the uniaxial compressive strength ( ci) and a material constant (mi...

... for this type of fine-grained sedimentary rocks that may be used for predicting uniaxial compressive strength from the available information on water content. INTRODUCTION Fine-grained sedimentary rock in this study includes mudrock or shale. This type of rock is formed in both marine and nonmarine...

... of the mixing blade, down/up speed, rotational speed and the flow of the injected mixture. untreated soil execution parameter diameter compressive strength MPa grout laboratory sample strength compression test uniaxial compressive strength sludge deposit soft soil characteristic evaluation...

... rock joints are used as a model joint for the surface of blocks facing opposite to each other. There are three types of the joint, comparatively smooth joint A, comparatively undulating joint B, and comparatively rough joint C. Uniaxial compressive strength of mortal including grout was aimed at 500kgf...

... ABSTRACT This study is carried out to study the engineering properties of soft rocks having uniaxial compressive strength about 10 to 100 kg/cm2. Recently measurement of elastic wave velocity becomes useful method to estimate Young's modulus and compressive strength of concrete and rock as non...

... by geotechnical consulting firms and by researchers at the University of Alberta show the following rock strength characteristics. The large majority of the rock samples tested exhibited very low uniaxial compressive strength (range 0.30 – 30.00 MN/m 2 ). Laboratory results suggest that strength increases...

... geomechanics engineering property weak rock Reservoir Characterization Upstream Oil & Gas kg sq specimen Wellbore Design gradation sandstone drilling operation determination compressive strength core recovery Singh strength Banara Hindu University uniaxial compressive strength sieve...

... andesites, as the host rock for the large copper deposits in. Reservoir Characterization classification elasticity Upstream Oil & Gas Mohr envelope reservoir geomechanics irfan rock mechanics point characteristic uniaxial compressive strength porosity Ankara andesite test result...

... Figure 1 Uniaxial Compressive Strength (0'0) MPa Relationship between modulus of elasticity and uniaxial compressive strength for Carboniferous Coal Measuresstrata (excluding coal) c = Where, c the diametric closure (m) d the excavated diameter (m) ? Poisson's ratio E Young's modulus of elasticity (MPa...

... Reservoir Characterization Upstream Oil & Gas flow in porous media strength Artificial Intelligence Fluid Dynamics soil mass slip surface shear strength deformability sandstone uniaxial compressive strength Bauru sandstone initial stress reservoir simulation stability analysis...