... Abstract Photogrammetry and optical televiewer are used to investigate discontinuities occurring in the highwall of the bench and in eleven blastholes in two blasts. The measuring conditions involve lower resolution for photogrammetry models. Discontinuity mapping was done manually by the same...

... Abstract The knowledge of geometrical properties of discontinuities is of crucial importance in the rock mass characterisation process. Recent advances in photogrammetry allow for an easy digitisation procedure of rock surfaces so that digital 3D models can be used for remote site...

... Abstract The influence of discontinuities on the mechanical behavior of rock masses, demands a detailed knowledge about the geometrical properties of the existing discontinuity network. Traditional measurement techniques provide a rough knowledge about a discontinuity network but are also...

... Characterization strength geomechanical characterization Upstream Oil & Gas outcrop discontinuity characterization sandstone coal seam solibida procedia engineering 191 enhanced geothermal system major principal stress discontinuity fault friction angle geothermal reservoir alber basin rock...

... over-tilted slope discontinuity mean st rock mass Upstream Oil & Gas stability analysis plane granite quarry failure mechanism rift joint Procedia Engineering 191 ( 2017 ) 402 409 1877-7058 © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC...

... Abstract Discontinuities play a key role in the mechanical, hydraulic and deformational behaviour of rock masses, frequently having a considerable influence on the stability of rock slopes. They can be characterized by several geometric parameters as the orientation, persistence, spacing, etc...

... Abstract Field measurement of rock mass permeability is essential that numerous factors influence its directional magnitude. Lugeon test is a popularly conducted field instrument in order to measure hydraulic conductivity of a rock mass. Discontinuity orientation, spacing and discontinuity...

... Intelligence Earthquake kinematic analysis discontinuity turan arslan deformation criterion international journal procedia engineering 191 mohr-coulomb parameter equivalent mohr-coulomb parameter Marble Quarry metals & mining strength Rock mechanics stability rock mass Procedia...

... conditions. In any such scenario, increased heat exchange with an exposed rock mass surface will cause thawing to occur. In general, a rock mass is stronger in frozen conditions than in dry conditions (i.e. without ice or water), but a rock mass will be least strong at the time ice-filled discontinuities...

... a guideline for testing procedures focusing on rock engineering purposes. 1 INTRODUCTION 1.1 Background Rock joints and other discontinuities control the behaviour of rock masses being, therefore, essential to understand how they behave. One of the most relevant parameters to assess the stability...

... associated with caving by developing a discontinuous modelling approach using UDEC strain-softening model (Itasca Consulting Group 2014). The developed model is not only able to explicitly simulate the progressive caving but is also able to incorporate the plastic material response. Reservoir...

... the highest geo hazard has been ascribed. The study has been carried out through firstly a geo-mechanical survey to recognize the discontinuity families, implemented by a terrestrial laser scanner survey, and after with a numerical modelling applying a 2D code (UDEC 6.0). The results allowed...

... ABSTRACT: The shear response of rock discontinuities has a direct relevance to the mechanism of earthquakes and their source characteristics, and their effect on rock engineering structures. The authors are concerned with the development of a dynamic shearing testing machine on rock...

... ABSTRACT: Discontinuities play a crucial role in the stability of any engineering structures such as open pit slope, highway wall, etc. Because the discontinuities are mechanically weak zones and failures occurred thought discontinuity surfaces and intersection lines which are bounded rock...

... from explosions during the civil war and it was blocked to traffic from 1993 to 1998 due to a huge blasting, which caused heavy damage in the tunnel. reservoir geomechanics RMQR South portal Reservoir Characterization portal Earthquake discontinuity excavation preliminary rock...

... geomechanics drilling operation Reservoir Characterization Upstream Oil & Gas ground type fault rock calculation inner lining Austria Directional Drilling Berlin geotechnical design parameter grautschenhof discontinuity lining interpretation tunnel geotechnical design Design Methodology...

... concept states that this factor should be obtained by the forces equilibrium relation between the load acting on the supported area by each pillar and their resulting reactive force. Unfortunately this and other evaluations do not consider, as a rule, the discontinuities structural control. The authors...

... saprolites for slope heights ranging from 5 m to 30 m. Reservoir Characterization Queensland major discontinuity stability strength Upstream Oil & Gas geologic structure Barton discontinuity application strength reduction factor weathered rock incompetent rock discontinuity...

..., established within the Austrian Society for Geomechanics, is to compile reasonable design approaches and rules into a guideline. This subgroup is dealing with structural design and the applicability of design principles from the Eurocode to the field of tunneling. underground structure discontinuity...

... ABSTRACT: Test methods for evaluating the dynamic mechanical properties of a discontinuous rock mass have never previously been established. Therefore, we developed an in-situ triaxial test method for dynamic (cyclic) triaxial tests. Then, in-situ cyclic triaxial tests were carried out...