... Abstract The sliding-resistance width of the embedded rock mass in front of anti-sliding pile is one of the important factors affecting whether the anti-slide pile can give full play to its resistance. Taking a landslide in Hunan Province as an example, the stress distribution characteristics...

... Abstract The processes that trigger instability of cut and natural slopes are directly related to the geometry, nature, resistance and behavior of the materials involved (soil and/or rock). From the knowledge of the strength parameters it is possible to understand the dynamics these factors...

... 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...

... construction q-system deformation resistance mpa instability loosening powerhouse cross-section barton crown Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4 Three dimensional numerical modelling...

... 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...

... Abstract In order to optimize the rock support design under the dynamic loading conditions such as rock bursts or coal bumps, weight-dropping tests were carried out to two samples of the constant-resistance-large-deformation (CRLD) bolts. Analytical models including the critical impact height...

... 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...

... 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...

..., the degradation occurred through the wetting and drying equipment, which simulates the natural degradation through the saturation and drying of the material that happens in cycles. The behavior of the rock material was analyzed through the wear resistance test using the slake durability equipment and bending...

.... In addition to the stratigraphic and lithological changes, an ignored aspect was the presence of groundwater which cause a reduction in the Sandstone resistance, facilitating its weathering and disintegration, influencing also the RMR values of the rock mass. Up to date is still pending the excavation of 16...

... 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...

... and forecasting in one system in order to constrain the displacement of the sliding blocks in the landslide to minimized the influenced area and provide precise warnings timely for the imminent landslides. For implementation of the new technique, a novel rock cable with large deformation and high resistance (also...

..., rock-grout bond, rock mass uplift failure, uncertainty INTRODUCTION Post-tensioned, and in some cases passive, rock anchors have been used for a range of applications in dam engineering over the last 80 years. These applications include providing resistance to overturning; restraint against downstream...

... ABSTRACT Medium resistance – elastic, inelastic, post-limit. Post-limit resistance – when strain is reduced with the increase of deformation. A Medium possesses a structure. What is the phenomenological structure of rocks and what is responsible for the resistance? This question should...

... is a function of rock hardness and confining pressure. In most hard rocks failed within a certain range of confining pressure this mechanism can create transient negative shear resistance, or negative friction , which makes rocks superbrittle and failure abnormally violent. 2 BRITTLENESS INDEX To quantify rock...

...Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-80444-8 Field test and interpretation of the side shear resistance of a drilled shaft in rock D. del Olmo & C. Olalla Department of Engineering and Morphology of the Terrain...

... factor Upstream Oil & Gas artificial rock material evaluation method resistance artificial discontinuity earthquake-induced failure behaviour earthquake-induced rock slope failure Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London...