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Keywords: granite
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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-2017-054
... determined. Hg porosity and total porosity of untempered and tempered specimens were found, too. As model material was chosen so-called Silesian granite from Nový lom quarry (Žulová pluton, Czech Republic), which has been previously tested, and over macroscopically homogeneous character the variances in the...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-031
... this behaviour, published laboratorial physical models on granite are simulated numerically with a Bonded- Particles Model (BPM) by using a distinct elements code. The numerical models are presented and the calibration of the BPM micro-parameters is described. Then, the calibrated numerical models are...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-016
... confinement, this study is mainly concerned with triaxial tests and the determination of CI and CD using different methods. A triaxial cell has been designed to examine spalling behavior of magmatic rocks under low confinement, at minor principal stresses up to 2.5 MPa. Two granites with different grain sizes...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-140
... it affects the mechanical properties of the rock. The purpose of the present study is to investigate the fracture mechanism and specifically detect the crack initiation and crack damage stresses in a granite rock. For this purpose, stress-strain data were recorded and the acoustic emission method was...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-050
...]. Upstream Oil & Gas Zhao assessment granite Reservoir Characterization structural geology dilation model Alejano dilation angle procedia engineering 191 peak dilation angle metamorphic rock laboratory intact rock specimen strength test sedimentary rock plastic shear strain post-peak...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-045
..., a back-calculation of the underground thermal energy storage (UTES) of the Kerava Solar Village was performed. The primary objective was to calibrate the numerical models to be used in an optimisation by quantifying the thermal properties of the surrounding granite and soil. The UTES of the Kerava...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-086
... Abstract Fracture analyses based on finite cover method (FCM) are conducted to investigate a fracture mechanism of granites. The analysis by the FCM, which is a cover-based generalized finite element method, has been extended for analyses of fracture process involving cracking within and/or...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-097
... Abstract The objective of this study is to examine any variation from micro to macro scale mode-I fracture toughness of granite using micro-sized specimen and semi-circular specimen. The rock used in the tests is Iksan granite (Korea) which is composed of minerals, such as plagioclase and...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-016
...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 Tensile strength anisotropy of Pocheon granite and roughness evaluation of its failure planes M.B. Diaz & S.G. Jung University of Science and...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-036
... extraction. This has been studied in this study with experimental evaluating the effect of temperature on mechanical behaviour of Australian Strathbogie granite and then modeling the findings for a broader conditions. The experiments were first conducted with heating the rock samples to various temperatures...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-017
... uniaxial compressive strength rock fragment international journal evaluation Upstream Oil & Gas strength test granite rock type equation correlation Significance compressive strength correlation coefficient Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-037
... method, and the sample material used was Toki granite obtained from Gifu Prefecture in central Japan. We found that temperature changes in the surrounding environment remarkably affected the pressure in reservoirs upstream and downstream, the pressure difference between them, and the confining pressure...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-028
... micro-sized specimens made of plagioclase, alkali feldspar, and quartz within Iksan granite (Korea) is evaluated at room temperature, using the testing machine. A micro-sized specimen of a cantilever beam type has dimensions of 10 × 10 × 50 μm. The specimen is made by Focused Ion Beam (FIB) machining...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-039
... were carried out using MTS rock test system with a loading rate of 0.002 mm/sec. Mean value of mode II fracture toughness of granite showed 2.33 MPa m 0.5 . Mode I toughness of the same granite was 1.12 MPa m 0.5 , determined by Brazilian disk test and K IIC /K IC = 2.08. The smooth fracture...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-118
... fracture around cavities and to assess the potential of the numerical model to simulate this behavior, published laboratory physical models on plaster and granite are simulated numerically. The numerical models are presented and the calibration of the BPM microparameters is described. Then, the calibrated...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-133
... associated permeability alteration in material. As a result, the overall permeability of the model, which is a function of degree of micro-cracking and crack connectivity, can be calculated at each stress state. Micro-mechanical parameters of the model is calibrated to Lac du Bonnet granite such that the...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-115
... implemented in the numerical model for brittle creep simulation. Compared to lab data, the simulation results of uniaxial compressive creep tests for granite predicted reasonable time-to-failure for rock samples as well as intuitive damage evolution and final failure pattern due to critical and subcritical...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-135
... Abstract This paper presents a methodology to generate a Synthetic Rock Mass (SRM) model in order to investigate the strength of jointed rock media using numerical modelling. First, the micro-mechanical parameters of the model are calibrated to Lac du Bonnet granite such that the model...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-116
... Characterization Wellbore Design Simulation Artificial Intelligence strength grain-based distinct element model gbm-udec model wellbore integrity thermally Korea Institute mineral tensile strength granite interface high temperature mineral grain reservoir geomechanics Upstream Oil & Gas...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-131
... tool wear and longer tool life. Furthermore, an increase in removal rates can be achieved. This paper presents cutting tests on granite, which have been performed to evaluate the applicability of the ultrasonic assistance for the machining of stone. Contrary to the state of the art, this study focused...

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