.... Introduction Failures in rock slopes are controlled by both rock material and discontinuities. In highly jointed rock mass with weak rock material, failure surface cuts through intact rock but in rock masses, with less number of joints and strong rock material, failure is controlled mainly by joint planes [1...

... to study the ground motion in TDRM. Reservoir Characterization ground surface surface wave jointed rock mass particle velocity incident wave emergence angle wave propagation Upstream Oil & Gas Rock mechanics frequency ground motion incident angle PPV rock mass normalized normal...

..., and joint surface condition are defined as fuzzy variables. The strength of jointed rock masses is then estimated by incorporating different combinations of three fuzzy inputs into Mamdani rule-based FIS model. To validate the accuracy of the model results, a comprehensive rock mass data is collected from...

...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 Numerical evaluation of rockbolt reinforcement unit in jointed rock mass by DDA method W. Nie, Z.Y. Zhao & S.Q. Ma School of Civil and Environmental...

...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 The secrets of jointed rock masses as told by distinct element models: Jointed roof beams, ground support design and the 1963 Vajont rock slide C.W...

... elements. The effect of multiple jointed rock mass is examined by adding a second joint set at specific orientations. Parametric analyses are carried out for the joint friction angle, for the stress field, in combination with varying joint orientation, joint density and joint stiffness. The analysis...

... strength axial force cable bolt performance numerical model structural geology equilibrium boundary excavation UDEC Upstream Oil & Gas model 2 block size rock mass Strain Capacity utilisation deformation reservoir geomechanics model 1 borehole jointed rock mass support system...

... Abstract One of the most challenging tasks in rock mechanics is the accurate evaluation of deformability and strength characteristics of jointed rock masses. Attempts to characterise large-scale rock mass properties in the laboratory are seldom undertaken due to the difficulty of obtaining...

.... It indicates that as a discontinuum-based approach, fractal theory is good at simulating the propagation and attenuation of blasting wave in jointed rock masses, and in modeling the stability of underground structures subjected to blasting loads. 1 INTRODUCTION Blasting loads resulting from detonation have...

...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 A preliminary evaluation of an enhanced FDEM code as a tool to simulate hydraulic fracturing in jointed rock masses A. Lisjak...

... Abstract The aim of this study is to investigate the rheological behavior of jointed rock masses involved in large space-time scale deformational processes. The analysis is based on both, an experimental approach consisting of an analogue laboratory testing approach which allowed...

... 1983, Zienkiewicz & Pande 1977).The presence of these fissures and planes of weakness significantly influence the response of geotechnical structures such as slopes, tunnels and excavations (Goodman et al, 1968, Bandis et al, 1983). 2 Jointed Rock Mass The jointed rock mass here is considered...

...Rock Mechanics for Resources, Energy and Environment Kwas´niewski & ydz ba (eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00080-3 A new test for the characterization of highly jointed rock masses C. González-Nicieza, M.B. Prendes-Gero, R. Fernandez-Rodriguez & F. Lopez-Gayarre...

... an accidental explosion, the drill and blast excavation or weapon attacks. Since the underground structures are surrounded by jointed rock mass, the blast wave propagation in the rock mass is significantly influenced by the joints. The vastly existed joints in rock mass not only affect the mechanical properties...

... characterization; and (c) it has been applied for over 20 years by practitioners in rock engi- neering, and has been applied successfully to a wide range of intact and fractured rock types. Hoek & Brown (1980) proposed a method for obtaining estimates of the strength of jointed rock masses, based upon...

... in India using FLAC2D software using this approach. The advantage of this approach is that it estimates the properties of jointed rock mass from the properties of intact rock and a joint factor (Jf), which is the integration of the properties of joints to take care of the effects of frequency, orientation...

... occurrence groundwater Chen rock mass auxiliary tunnel jointed rock mass tunnel Upstream Oil & Gas rock burst zone prediction application construction 617 Rock Engineering in Difficult Ground Conditions Soft Rocks and Karst Vrkljan (ed) © 2010 Taylor & Francis Group, London, ISBN 978-0...

... and support. Rapid evolution of computer software and hardware offers the potential for the calibration or possible elimination of some of the empirical techniques upon which tunnel designers have to rely. structural geology Marino brittle failure jointed rock mass reservoir geomechanics strength...

... porosity jointed rock mass fracture Eurock 2005 -Impact of Human Activity on the Geological Environment - Konecny (ed) © 2005 Taylor& Francis Group, London, ISBN 04 1538 042 1 Analysis of sliding failure of the Viviers- Basques' (France) jointed rock cliff M. Borie, A. Marache, 1. Riss & R. Fabre CDGA...

... for the simulation of saturated jointed rock masses. An inertial extension of the contact consolidation is obtained using d' Alembert's inertia principle. Inertia extension needs to be completed with a closure relation. Depending on the closure relation the contact consolidation is transformed into a dynamic model...