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Keywords: jointed rock mass
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Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-095
.... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-181
...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 Blast wave propagation across jointed rock masses and its influence on the ground motion S.B. Chai, J.C. Li, H.B. Li, N.N. Li & L.F. Rong State Key...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-015
..., 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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-076
...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...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-150
... 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...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-141
... 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...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-076
... 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...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-120
... underground structure latticelike rock mass Denote Upstream Oil & Gas displacement jointed rock mass virgin rock stiffness modeling fractal wave propagation shock wave attenuation additional memory structural fractal tunnel propagation informational field equation 5...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-059
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-040
...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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-040
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-107
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-034
... 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...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-098
... mass differs from other geomaterials such as soil and concrete, in which rock joints dom- inate the deformation and failure of the rock mass. The discrete element modeling is specially designed to model jointed rock mass which treats the rock mass as a discontinuous medium containing rock material...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-005
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-011
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-016
... 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...

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