... of seismic resistance is a very important issue. Here damage reports on the 1923 Kanto Earthquake, the 1995 Hyogo-ken Nanbu Earthquake, the 2004 Niigata-ken Chuetsu Earthquake and others in total seven earthquakes are studied and the seismic resistance is evaluated as in the relationship between the seismic...

... underground space technology prada limestone garrido science rock mechanic limestone resistance drilling engineering penetration journal 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Variation in the drilling rate in thermally treated limestones through...

... may be reduced slightly, however the cohesion gets lost, as seen in Figure 2 and 3. deformation europe government tunnel shotcrete lining john hydraulic fracturing displacement cohesion application resistance arlberg road tunnel lot west geology geological subdiscipline vavrovsky...

... ABSTRACT: The electrical resistance measurement system (ERMS) was tried to be developed. The first in-situ applications were carried out in A6 panel in GLİ underground coal mine. As perpendicular to the pillar face, two parallel boreholes with 4 m long and interval 30 cm were drilled...

... has good resistance to MIC. INTRODUCTION Cable bolts and rockbolts are used as primary and secondary anchoring systems in many underground mines, particularly in the Australian underground coal mines. In the past two decades, there has been a rise in reports concerning the early failure of cable...

... reservoir geomechanics sheorey rmr classification stability application resistance junction strength cmri-ism rmr sedimentary rock geology gallery geological subdiscipline seam xvb pillar seam xvii bhelatand amalgamated colliery ssf central mining research institute singh 15th ISRM...

... in front of natural and induced actions determines the stability conditions and, therefore, the support measures to apply. If the rock is competent, no problems will appear during the excavations. On the contrary, if the massif is incompetent with low resistance and the discontinuities are unfavourable...

... physical modeling resistance galilei interaction international journal 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Physical Modeling in Rock Mechanics and Rock Engineering Herbert H. Einstein Massachusetts Institute of Technology, Cambridge, USA ABSTRACT...

..., understanding the development of shear resistance of a joint surface with shear displacement may reveal the dilatant behavior as well as the variation of shear stiffness. In most of the applications, shear stiffness and dilation are considered to be the constant throughout the evolution of shear stress until...

... Abstract The damage of rock can be characterized by changes in resistivity after the damage process. Previous research demonstrates that the resistivity measured by direct current (DC) resistivity test is often used to define the damage variable. However, sometimes the accuracy of resistivity...

... special in the upstream shoulder. specimen alterability resistance compactness river guadalajara quarry reservoir characterization tajo hydrographic confederation laboratory dolomite spain upstream oil & gas particle construction alcorlo dam porosity cedex fragmentation x-ray...

... orientation wellbore design pillar pillar strength confinement fracture reservoir characterization displacement discontinuity engineering loading resistance aydan assessment department adhesive oya tuff pillar strength Rock Mechanics for Natural Resources and Infrastructure Development...

... Abstract The present work aims to perform an analysis of the mechanical resistance in seven rocky materials from the different geological provinces found in Rio-grandense territory through the use of laboratory tests that determine different parameters through the application of different...

... reservoir characterization evaluation procedure madeira rosa particle olho degradation resistance laboratory rock mechanic variation figure 4 janeiro strength durability madeira branca brasileiro application maia Abstract This study aims to know the behavior of the rocky...

... cavity cavern backfill classification upstream oil & gas himalaya dimensional numerical figure 8 reservoir characterization young excavation reservoir geomechanics construction q-system deformation resistance mpa instability loosening powerhouse cross-section barton...

... with volume. (iii) this case is same to second but this time one annular is cemented. The cement offers a collapse resistance in the model center. The results analyses was performed for three curves: the von Mises stress curve vs time, and the annular pressure and annular volume vs. time. 1 Introduction...

... formula, cause the adjusting of jacking direction will be more critical compared with its application in shallow strata conditions. metals & mining deviation calculation formula engineering formula coal mining axis resistance friction correction declination pipe stratum coefficient...

... Abstract The constant-resistance-large-deformation (CRLD) bolt incorporated with a negative Poisson's ratio (NPR) structure, known as "NPR bolt/cable", has an approximately ideal elastoplastic constitutive behavior and is capable of working at high-constant resistance and adapting to the large...

..., underlying Quaternary university thermo-hydro-mechanic characterization sillar humidity correspond reservoir characterization cochabamba resistance alvarez ltda spain structural geology degradation resistivity ohm-m muscovite kaolinite upstream oil & gas polytechnic university...

... janeiro instability nbr 11 geometry risk management risk and uncertainty assessment shear strength cnica cohesion rupture rio piracicaba university quantification civil reservoir characterization landslide resistance federal university Abstract The processes that trigger...