... The behaviour of the liner-rock interface is an important property which determines the support characteristic of polymer-based rock support systems. The interaction between the liner and the rock substrate was defined using a traction-separation description of a cohesive zone model in ABAQUS...

... to calibrate the numerical model. From the calibration, the parameters involved in the general form of peak particle velocity have been determined. It is demonstrated that the blast wave propagation in the free field is significantly governed by the field geological conditions, especially the interface between...

... geomechanics expansion coefficient hydration Reservoir Characterization displacement boundary condition bentonite hydration saturation Artificial Intelligence discrete fracture geometry Upstream Oil & Gas borehole procedia engineering 191 bentonite interface han�ilová diffusion equation...

... & Gas underground coal operator analytical solution grouted bolt procedia engineering 191 bond strength bastami interface University grouted rock bolt equation case study Procedia Engineering 191 ( 2017 ) 1068 1074 1877-7058 © 2017 The Authors. Published by Elsevier Ltd. This is an open...

... and dramatic strength weakening of the rupture head. Although essential for understanding earthquakes, rock mechanics, tribology, and fractures, the relation between the intensive microcracking and strong interface weakening remains enigmatic despite continuous studies over decades. The fact that rupture...

... specimen arzúa laboratory representation tensile strength peak strength parallel-bond model interface stress-strain behavior blanco mera granite Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1...

... into the 2-dimensional discontinuous deformation analysis (DDA) code. The rockbolt material follows an elastic, linear strain-hardening behavior, while the shear debonding along the rock/rockbolt interface is considered. By pulling out an individual rockbolt in various geological conditions...

... stress at the interface between the bolt and grout material vanishes. Closed form elasto-plastic analytical solution of grouted bolt around a circular tunnel have been presented by many researchers (Stille et al. 1989, Cai et al. 2004, Carranza-Torres 2009, Osgoui & Oreste 2010). Modelling of rock...

... of geology, stress and mining conditions. It has been recognised that the unstable releases of potential energy of the rock around the excavations, mainly in the form of kinetic energy, contributes to the coal burst occurrence. Interactions between the coal and rock interface as well as the confinement can...

... characteristics, and their effect on rock engineering structures.The authors are concerned with the development of a dynamic shearing testing machine on rock discontinuities, interfaces and soft rocks. The device is capable of applying four different loading schemes, namely, shear testing with constant loading...

... along either a discrete sliding surface, or within a zone, underneath the surface. If the shear force (driving force) is greater than the shear strength of the interface (resisting force) then the slope will be unstable. Instability could take the form of displacement that may or may not be tolerable...

... pore pressure cohesion weathered rock layer multiphase flow rainfall intensity rainfall finite difference method interface shear resistance force Fluid Dynamics weathered soil layer plastic zone slope stability friction angle Upstream Oil & Gas lower slope greater impact...

... grain and interface were calibrated based on the experimental results of UCS and Brazilian tests at room temperature. For implementation of the mechanical analysis, a commercial code UDEC based on DEM theory was adopted in the present study. With the microstructures and a set of micro-parameters...

... hinders an effective evaluation of sensor data. observation result model language natural phenomenon turbidity communication specific point sensor interface geological situation theodolite open geospatial consortium swe standard Sensor Network SWE initiative geo-monitoring project...

... displacement numerical simulation boundary tunnel lining reservoir simulation shell theory lining poling-board method cylindrical shell shear stiffness mountain tunnel lining normal stiffness vibration tunnel Upstream Oil & Gas natural frequency concrete-rock interface rock...

... (joints and faults) within the rock mass (Gimenes and Fernández, 2006; Bretas et al., 2013). It should be noted, however, that FLAC can also model discontinuities using interfaces, but this takes up considerable computational time so its use is limited to a few joints within the rock mass. Also, the flow...

... of executed technology: particularly risk management problem. Based on observations made in the construction site after the failure occurrence, the failure mode has been diagnosed as localized slip over interbedding plane at the interface. A relatively simple method for determining the failure probability has...

... were analyzed according to the derived formula. The results show vertical pressure of surrounding rock increases with buried depth and tunnel slope angle, decreases with included angle between rock interface and vertical plane. The horizontal lateral pressure coefficients besides tunnel lining show...

.... The pit wall slope stability must not be jeopardized. The engineers planned and undercut the slope at a particular span width so that the G1 interface would be partly daylighted. Concurrently, three dimensional numerical models were constructed and analyzed as a preliminary study of the undercut slope...

... by considering sliding on discrete failure planes, either the concrete-rock interface of gravity dams, or rock discontinuities that may create unstable wedges in the abutments of arch dams. Discrete element (DE) models allowa straightforward analysis of these mechanisms, invoking the conceptual model underlying...