...Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4 Correlations between geomechanical and physical properties for amphibolites and schists from south of Minas Gerais state, Brazil K.S. Rezende & E.A.G...

... Abstract The main objective of the present work is to contribute to the knowledge of the alterability of Foz-Côa schists in different environments. In this sense, tests are carried out on specimens with different degrees of weathering, in indoor, dry and saturated environments, in outdoor...

... in respect to general prediction of the uniaxial compressive strength of rocks. structural geology strength uniaxial compressive strength mineral deposit reservoir characterization variation schist correlation north macedonia investigation engineering geology correlation project type...

... Abstract The Riacho dos Machados Gold Mine (MRDM) is located 570 km from Belo Horizonte city, capital of the Minas Gerais State. The MRDM comprises an open pit mine with approximately 100 m depth, mined in paleoproterozic schists. In the years of 2015 and 2017, global planar slope failures...

... ABSTRACT A laboratory study was conducted to study the effect of heat on the mechanical properties of diabase, granite and quartzitic schist at temperatures of 400°C, 750°C and 1100°C. Unheated samples were also studied. The reasoning behind this study was to understand the effect of elevated...

... schist literature strength anisotropy index anisotropy point load strength diametral test perpendicular 11th Congress of the International Society for Rock Mechanics Ribeiro e Sousa, Olalla & Grossmann (eds) © 2007 Taylor & Francis Group, London, ISBN 978-0-415-45084-3 Classification...

... ABSTRACT Durability tests and evaluation of sub-zero temperature effects to some argillaceous clastic rocks were carried out. Welded tuff, limestone, sandstone and schist samples collected from different parts of Japan were tested and results are presented. Schist and dolomite from Ganesh...

... structural geology orientation Marino failure criterion uniaxial compressive strength rock sample Upstream Oil & Gas criterion Applicability schist Hoek Reservoir Characterization variation specimen strength inclination anisotropy Athens Schist MPa schistosity plane...

... Quartz mica schist collected from Nathpa-Jhakri Hydropower Project, Himachal Pradesh, North India is tested under triaxial loading using a servo-controlled loading system. Complete stress-strain-volume change behaviour including post peak softening behaviour of the samples, are presented...

... Abstract Triaxial tests were conducted on the schist specimens with various anisotropic angles under confining pressures of 0, 7 and 15 MPa, and axial stress-axial strains, were measured and plotted for various conditions. The results obtained reveal the effects of schistose on the strength...

... of Panjal volcanic, a 290-m wide strata consisting of a mixture of sheared and crushed mica, talc, chlorite and graphite schists and phyllites with some limestone bands was encountered. A notable amount of clayey gouge was also present. reservoir geomechanics relation Reservoir Characterization...

... (diametre de 3,3 metres) et une machine d"alesage. Le tunnel est passe par du schiste noir (73%, resistance à la compression uniaxiale maximum 800 kN/m 2 ), schilte vert (27%, 1 600 kN/m 2 ) at a croise 12 zones de fracture (largeur maximum de 85 mètres(. L"excavation en utilisant la machine pilote a ete de...

... are different from those in published test methods. The test results are applied to a model of schist as a transversely isotropic rock defined by five independent elastic constants. RESUME: Les resultats des tests effectues en laboratoire sur des roches schisteuses anisotropes pour determiner leur resistance...

...-shaped gorge with steep slopes. The bed rock is predominately composed of micaceous schist and hornblende schist which were partly intruded by a small amount of granite veins and lamprophyre dykes. the geological structure of the dam site is governed by a slightly plunged Hongliugou anticline with its...

...-glacial/Fluviatile terraces in the Overburden. Seven drill holes were logged along the water conductor system out of which four are located along the tunnel alignment as shown in Fig.2. The bore logs are presented in Fig.3. These bore logs indicated the presence of quartz-Schist-biotitegranatic gneiss bed...

...MULTI.STAGE DIRECT SHEAR TESTS IN SITU ON SCHIST FOR SLOPE STABILITY STUDIES (CAUE MINE, ITABIRA, BRAZIL) Essais de cisaillement in situ et a plusieurs niveaux executes sur un schiste pour des etudes de stabilite de talus (Mine de Caue, Itabira, Bresil) In mehreren Laststufen durchgefOhrter...

... SYNOPSIS: The pumped storage plant Estangento Sallente, which at present is under construction, is located in the Pyrenees in the province of Cataluna in Spain. The main structure is the 20 m wide, 38 m high and 90 m long powerhouse cavern, which is located in schist. The overburden amounts...

... les massifs rocheux plus fractures et heterogènes plus difficiles necessitant la mise en place immediate d'un soutènement. Deux exemples volontairement extrêmes illustrent bien cette evolution: en 1966, le tunnel OSO est fore dans les schistes peu resistants, homogènes et reguliers du Nouveau Mexique...

... and attitude of low-angle joints (Overlay). 1.2 Magnetometric Survey Several oriented sections were made in the area, most of them perpendicular to the dikes, and some parallel. It should be noted that the results of the magnetometric readings (M.R.) were quite persistent. On granites, schists and most...

... of rocks such as joints and laminated cracks has the influence on the ultimate strength, the failure pattern and the deformation characteristics, a series of uni-, di- and tri-axial compression tests were performed using two kinds of schist. Main object of this research consists in investigating the change...