... Abstract Defining engineering behavior of rock masses is strongly dependent on observations made in situ and the following rock mass geotechnical classification. Nowadays, the most widely used classifications are rock mass rating (RMR) and the rock mass quality (Q). Because the rock mass...

... characteristics of discontinuities. Although the use of UAV data in rock slope analyses have been discussed by many authors [3, 4, 5, 6, 7]; however, their use as tool for incorporation in empirical rock mass classification methods, such as the Geological Strength Index (GSI) [8] and Q-slope [9], has not been...

...]. geologist united states government geological subdiscipline macedonia government europe government bimrock structural geology reservoir characterization andesite classification jointed andesite upstream oil & gas rock type practice iop publishing iop conf matrix volumetric block...

... hydromechanical models. The approach allows to populate these models with more realistic parameters which incorporate also the effect of fractures on the rock mass behaviour. Obtained results are subsequently compared with conventional engineering rock mass classifications. The applied workflow allows...

... have forced the application of 3D modelling from drone images in order to support the traditional methods of data collection through surveys and the rock mass classification through the installation of geomechanical stations in the field. The experience gained from applying these processes has allowed...

... of the rocks is one of the crucial factors that drastically reduces the engineering properties of the rocks. geologist india government classification rock engineering asia government geological subdiscipline environmental science 833 upstream oil & gas reservoir geomechanics practice iop...

... contour environmental science 833 assessment evaluation rock engineering underground space technology classification tunnel consequence Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021) 012137 doi:10.1088/1755...

... at the European Organization for Nuclear Research (CERN). One of the study's main challenge is the handling of more than 9.1 million m3 of tunnel excavation material. As a matter of fact, this requires a sophisticated geo-scientific and technical classification of FCC's proposed excavated geological units...

... project in China, this established method was verified. The evaluating results from field data shows the reasonability and feasibility of the established evaluating method. The tunnelling status of TBM are classified into four classes, and in certain class of rock mass (BQ classification), the tunnelling...

... Oil & Gas Reservoir Characterization Siltstone classification reservoir geomechanics shale slake durability test grain size curve slake durability index natural climatic condition rock mass disintegration permian-age siltstone characteristic procedia engineering 191 disintegration...

... & Gas Artificial Intelligence accuracy rockburst prediction model strength Support Vector Machine kernel function prediction model classification classification ii combination 1 actual value prediction prediction result combination 5 combination 2 combination 9 combination 13 rockburst...

... and high tensions often oval crosssection (horseshoe) can be used. In designing tunnel supports, the RMR rock mass classification system have been employed by many researchers and have gained a universal acceptance (Barton 2002, Ramamurthy 2004, Hoek & Diederichs 2006). In recent years this hypothesis...

... & Vlastelica 2014). Reservoir Characterization classification behavior pattern instability fragment Upstream Oil & Gas preliminary relationship alicante behavior profile degradation Shakoor slake behavior pattern laboratory slake behavior erguler excavation Cano structural geology...

... & Gas experimentation diameter different location classification material property lining rock mass deformation soft rock unlined tunnel tunnel Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265...

... noise showed seasonal reversible variations related to temperature fluctuations. No irreversible changes, resulting from serious damage processes, were detected during the monitored period. Classification and location of microseismic events had also been attempted but resulted challenging due...

... for implementing rock mass classifications in tunnels and caverns. 1 INTRODUCTION - CONSTRAINTS IN UNDERGROUND WORKS The characterization of faults and fractures is a key point in rock mechanics, discontinuities being one of the most important aspects when describing a rock mass or when modelling...

... ABSTRACT: Weathering has several effects on the physical, strength and material behaviour characteristics of rocks. Various researchers have attempted to obtain weathering classifications using qualitative and/or quantitative approaches. In this study, material behaviour under uniaxial loading...

...) Coral 19.6 23.4 20 34 2.5 4.1 3.6 5.2 50 56 Sandy 18.0 18.2 0.7 2.2 0.14 0.25 0.2 0.5 37 44 : Unit weight; c: UCS; ti: Tensile strength; c: Cohesion; i: Friction angle. Table 2. Rock mass classifications of rock cliffs. BASIC Q- CRIEPI* RMR Valve RMQR DL (sandy) 15 16 0.025 13 15 DH (sandy) 32 34...

... different formulas of SMR, therefore to get optimum value of SMR, an approach was carried out through modification (Zakaria et al. 2015). Geomechanics classification is based on Rock Mass Rating (Bieniawski, 1989). The study is conducted in a coal mining which elongated at South Kalimantan to East...

... strength correlation specimen Upstream Oil & Gas Coimbra porosity classification dolomitic limestone ISRM Reservoir Characterization Portugal correspond uniaxial compressive strength University central portugal Schmidt rebound hardness mechanical characterization hardness...