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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-046
... central borehole until the specimens failed by tensile fracturing. Numerical modeling incorporating fracture mechanics was used to obtain a relation between tensile fracture growth and injection pressure. The calculated injection pressure at specimen breakdown is only depending on the fracture toughness...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-034
... mechanical models (mixture model, micro-structure model) which are assumed from the result. Finally, Authors propose the empirical formula related to homogenized physical properties of the improved body. 1 INTRODUCTION A field experiment was performed on a ground improvement pile made of heterogeneous...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-126
... anisotropy strength rc strength rc failure criterion relation original criterion rock anisotropy criterion anisotropy Tsiambao extension Saroglou Bagheripour Hoek ABSTRACT: Rock failure criteria were used to predict rock strength and to characterize deformation behavior of rock mass or intact...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-092
... al. 1967 and Jaeger et al. 2007 etc.). The results of studies have shown that one of the main difficulties is connected with investigating hard rock which UCS values change within the range from 50 to 300 MPa (Turchaninov et al. 1967). This is related to the fact that to obtain reliable data we have...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-043
... intelligence were applied, which enabled to investigate the mutual relations between parameters of the excavation process determined by application of various methods. Acquired results enabled to complement and specify the results of conventional geological, engineering-geological hydrogeological and...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-070
... intersections (see review in Kachanov (1993)). In tensile conditions, recent advances in effective elastic media improved the relation between the fracture density and the Young modulus of fractured rock (Le Goc et al. 2014). The solution writes as: complex reservoir reservoir geomechanics DFN model...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-114
... preparation of the models, this methodology enables us of making decision related to the preliminary design, knowing as well the previewed deformations. Introduction In this article is exposed the process followed in the preliminary design of an underground crushing chamber placed in a quarry of ornamental...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-200
... anisotropy of seismic wave velocity using the Multichannel Analysis of Surface Waves (MASW). relation wave velocity Artificial Intelligence Idziak Reservoir Characterization orientation tensor Upstream Oil & Gas phase velocity seismic profile multichannel analysis rock mass triassic...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-050
... representative as the obtained in the other two formations. structural geology strength strain gauge Upstream Oil & Gas natural water content laboratory relation water content mean value FMAM deformability specific weight strata Reservoir Characterization longitudinal anisotropic rock...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-044
... formation different temperature salt rock Reservoir Characterization relation identification Burger model equation 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...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-053
..., such as hyperbaric operations (Rostami et al., 2012). Reservoir Characterization relation abrasivity measure co 320 abr 0 Upstream Oil & Gas Rostami characteristic metal blade geotechnical material abrasiveness prediction excavation ABR pf 880 classification barcelona area...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-007
... (loading rates from 0.01MPa/s to 800MPa/s) in the linear-elastic ranges of the rocks. All rocks display hysteresis on the stress-strain diagram. From the hysteresis loop several moduli may be calculated, whose magnitudes are related to the difference between conventional static and dynamic Young's Moduli...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-126
... environment. This paper introduced the n values of various rocks and analyzed the relation of the n value to the loading condition, testing environment and other mechanical properties. The n values were almost constant in unconfined various loading conditions if rock type and testing environment were same...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-033
... tangential stress Reservoir Characterization mechanical loading vertical drill hole cohesive rock effective stress Upstream Oil & Gas pore porosity variation chart apparent value relation normal stress Terzaghi model drill hole cohesive discontinuous rock Rock Mechanics for Resources...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-019
... tensor dynamic elastic moduli potential direction elastic moduli orientation quarry crack tensor elastic property relation anisotropy wave velocity dolomite wave propagation azimuth distribution Rock Mechanics for Resources, Energy and Environment Kwas´niewski & ydz ba (eds) © 2013...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-086
... in 1876 the compressive strength variation of 23 prismatic specimens of sandstone (Switzerland) according to the relation between their width and height, obtaining the first equation which related these two variables (Bunting apud Hustrulid, 1973). In 1911 Bunting, studying the design of pillars in...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-107
... debris flow Energy Balance horizontal cable relation mechanism rock fall kinetic energy University Rock Mechanics for Resources, Energy and Environment Kwas´niewski & ydz ba (eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00080-3 Comparison between the mechanical behavior of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-077
... Abstract: The underground mines widely utilize blasting with different charge capaci-ties. The relation between ore blasting and seismicity in mines is considered here based on data on mine seismicity variations after explosions in Tashtagol Iron-Ore Mine (Russia). The seismic monitoring...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-088
... used for the analysis and design of projects related to rock masses. For example, in tunnel engineering this method is often used to evaluate the stresses and the deformations around the excavation. Two different approaches are in general adopted when dealing with this specific problem: one is the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-021
... matrix shows extreme values in directions concordant with the orientation of crack systems. Reservoir Characterization orientation tensor electric conductivity seismic wave velocity wave velocity eurock 2012 relation physical property crack tensor Diabase limestone velocity tensor...

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