... significance rock mechanic sphericity geologist israel government fragmentation engineering effect collinear priority research centre asia government replica figure 3 mortar replica magnitude geometrical variability strength 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert...

... oil & gas reservoir geomechanics volcanology strength europe government geological subdiscipline geologist italy government university bologna spizzichino figure strength criterion mohr-coulomb strength criterion geology reservoir characterization antro della sibilla specimen...

... among others (Armand et al. 2014, see Figure 1 for example). Several factors contribute to this anisotropic response: anisotropy of the rock fabric (stiffness, strength), anisotropic in situ stress state, induced pore pressure field, induced quasi-brittle failure, etc. Over the last 20 years, many...

... (Paraskevopoulou, 2021). Consequently, the primary aim of this paper is to give more insight into how brittle rock types perform over time in underground conditions. geologist europe government tensile strength figure 4 representation mechanism geology threshold infrastructure geological science...

... with a self-supporting reinforced concrete inner shell. The low clearance profile required partial removal of the masonry. Due to the vibration-sensitive structure and high rock strength, the milling work had to be carried out on the basis of a separate safety concept including high-pressure water cutting...

... ABSTRACT: The prediction of a rock joint's peak shear strength becomes complex when its joint surfaces are not fully accessible, such as the rock foundation under an existing concrete dam. This paper presents a case study with the application of a newly developed methodology that uses...

... of strength and the stress dependence of creep lifetime in dry and wet conditions was examined on the basis of the previous experimental results of a tuff. It was found that the results of strength and short-term creep tests in dry and wet conditions are consistently explained with the rate process theory...

... that they crush as they are being cut, with the residual strength of the pillar material being used for the design. However, the major challenge is to "cut" or mine these pillars to the designed size. Undersized pillars degrade and do not provide the required stability, whilst pillar bursts may occur from...

... percussion drilling neural network rotary percussion drilling geotechnical information node rotary percussive drilling correlation matrix variation predictability neighbor dataset accuracy progression strength 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds...

... university deposit landscape dula roman gold exploitation nw-spain europe government metals & mining conglomerate matrix pliny strength figure 4 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Roman gold exploitation at the archeological site of Las...

... government photograph application reservoir characterization telephoto len structure doi geologist artificial intelligence geological subdiscipline rock mechanic madrid geology strength information cloud motion reservoir geomechanics roughness photogrammetry senent international journal...

... ABSTRACT: The uniaxial compressive strength (UCS) test is regularly used to derive rockmass strength and stiffness properties for geomechanics numerical modelling. While the test is straightforward, selecting representative material properties from a testing suite constrained by economics...

... in performance predictions. geologist structural geology measurement while drilling automation germany government upstream oil & gas sweden government drilling operation europe government reservoir characterization drilling data acquisition geological subdiscipline prediction strength...

... ABSTRACT: Deep dry hot rock geothermal energy is a new type of renewable energy, which is environmental friendly and abundant. The ROP improvement is one of the bottleneck faced in deep hot dry rock drilling. Regarding to the high temperature, strength of hot dry rock, the combination...

... is a complex task which has not been conveniently solved to date. It is well known that the strength of the rock mass is a function of the strength of the intact rock, the shear strength of the discontinuities, the structure of the rock mass and the geo-environmental conditions to which the rock mass...

.... geology reservoir geomechanics hidste shear strength europe government reservoir characterization interaction deformable lining soil-structure interaction geotechnical engineering geologist lining geological subdiscipline strength epe displacement upstream oil & gas interface shear...

... of 0, 5, 10, and 20 MPa for confining pressures. The results showed that the applied deviatoric stress and temperature both have significant coupling impacts on the peak strength and dilatancy boundary of rock salt. INTRODUCTION This Hydrogen is a promising solution, in response to the increasing...

... ABSTRACT: The scope of this study is to investigate the potential correlation of the Schmidt hammer rebound number with the uniaxial compressive strength and the static Young's modulus of prasinites, a metabasic petrological type outcropping in Attica Peninsula, Greece. Research works...

... ABSTRACT: Structures present in rock masses have a significant importance on strength and deformation of the rock mass that govern the rock mass’ performance in underground mining. Although important progress has been made in these last decades, data on their geomechanical properties is still...

... that the dynamic joint shear strength depended on the initial normal stress and joint roughness. INTRODUCTION Underground rock structures under high-stress conditions are exposed to potential fault-slip, rock ejection, and rock fall hazards caused by the discontinuities. For that reason, the underground...