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Keywords: variation
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Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-195
... portugal government geology discontinuity coefficient variability eurocode 7 practice iop publishing iop conf rock engineering theory environmental science 833 probability spatial variability variation strength calculation probabilistic calculation Mechanics and Rock Engineering, from...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-022
... iop publishing iop conf determination geological subdiscipline engineering variation rock mech geologist limestone elasticity moduli rock engineering carbonate rock theory correlation europe government reservoir characterization environmental science 833 coefficient borriol cooling...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-013
... a more realistic estimate of shear strength to be made at low values of normal stress, preventing potential over-design problems. Nevertheless, the HB model neglects the effect of the intermediate principal stress on material properties. Limited studies on the variation of apparent cohesion and friction...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-018
... size effect in terms of strength at low confinements. Indeed, the UCS increases as sample diameter increases up to around 50 mm, but decreases thereafter. However, results obtained put forward that this strength variation with scale tends to be mitigated for higher confinements where the scale effect...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-153
... rock engineering variation displacement Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021) 012152 doi:10.1088/1755-1315/833/1/012152 Effect of thermal cycles on rock cliff deformation. Monitoring and interpretation C...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-172
... example environmental science 833 implementation variation tunnel financial sustainability uncertainty sensitivity analysis Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021) 012170 doi:10.1088/1755-1315/833/1...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-179
... in order to take into account the variability of rockfall trajectories and provide a contribution for the estimation of the parameters within preliminary analyses based on the Cone Method. rock engineering variation variability percentile slenderness theory trajectory ramm geologist...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-184
... pressure change (while confining pressure is maintained at a constant value). The variation of the calculated Biot coefficient values in relation to the amplitude of pressure variation in each test was analyzed. The tests for each sample were performed with small pressure steps in the beginning...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-024
... the AMF. structural geology strength specimen reservoir geomechanics maximum value reservoir characterization upstream oil & gas variation strength criteria drilling operation orientation plane tectonic fabric anisotropy weakness plane tectonised rockmass deformation kpa...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-010
... freezing for mine shaft construction. Reservoir Characterization pipeline application saturation frost heave freezing unfrozen state mechanical behaviour compressibility coefficient variation unfrozen water saturation procedia engineering 191 haxaire Upstream Oil & Gas solid phase...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-087
... researchers to go deeper into the details of the microcracking process in extreme ruptures. For example, laser techniques in experiments on transparent brittle polymethyl methacrylate (PMMA) specimens allowed visualizing the variation in contact area and interface slip associated with microcracking process [6...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-047
... Reservoir Characterization Wellbore Design variation wellbore integrity Upstream Oil & Gas tensor reservoir simulation micromechanical approach boundary condition construction materials gabssi composite material porosity effective bulk modulus estimation procedia engineering...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-104
... injection and production wells. Reservoir Characterization heat exchanger area calibration geothermal reservoir Simulation simulator numerical simulation hydraulic fracturing enhanced geothermal reservoir variation operational parameter procedia engineering 191 Upstream Oil & Gas...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-141
... 10 000 towns in France. We have studied the physico-mechanical behaviour and ageing of two types of chalk in underground quarries in the Parisian Basin, France. The dolomitic chalk (Saint-Martin-Le-Nœud) exhibits variations in mechanical and physical properties with horizontal pillar depth, and both...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-166
... simultaneously. It is noted that the relative humidity variations at 1 mm above the top sur- face are quite good agreement with the drying-induced deformation behavior (Ohtake & Osada 2014). 3 TEST RESULTS In the following, a convention was adopted that shrink- age strain is negative and expansion is positive...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-173
... (DFN) simulation results show some of the equations are suitable for calculation of mean trace length and the difference between actual value and their values is less than 15%. Apparent density is dependent on scale, but the Mauldon s estimators are independent of scale despite the variation...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-139
.... The hottest month is July while the coldest month is February. Rainfalls are observed in spring and autumn and snow fall is observed during November till March remains on the ground till the end of the march (Fig. 8). Figure 9 shows the tempera- ture variation of rocks at certain depths. As noted from...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-164
... variation operation excavation storage permeability Rutqvist air tightness rock mass Energy Storage 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 Pilot test of compressed air storage...

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