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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-158
..., roof lithology and the cutting direction of the continuous miner. Laboratory strength testing on shale in the immediate roof was done and the test results were used as input parameters into the Examine2D modelling. The numerical modelling results were analysed in an attempt to correlate the modelling...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-183
... reservoir geomechanics laboratory test longitudinal axis Reservoir Characterization Wellbore Design strength test result mining activity pillar wellbore integrity orientation Germany inclination metals & mining Upstream Oil & Gas stability assessment assessment rock...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-091
... to about 20% for load angles of about α = 60 – 70°. By these test results also the strong variance of results of compressive strength tests performed before the point load test campaign could be explained. 1 General The point load index test is a simple test for estimation of rock parameters. Usually...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-253
... itself. It involves using characteristic values of actions, ground properties and geometrical data, as well as obtaining their design values by the partial factor method. Upstream Oil & Gas criteria mean value Artificial Intelligence criterion fractile test result regression cautious...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-167
... Upstream Oil & Gas correlation reentry time strength peak load resistance panel test accelerator type test result metals & mining cylinder pullout test shotcrete Reservoir Characterization shear strength requirement dosage compressive strength resistance load resistance...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-028
... of laboratory tilt or pull tests on adequately cut and prepared rock specimens. However, when performing a good number of these tests, results may be surprising in terms of their wide variability and varying trends according to the particular environmental conditions of the carried out tests. By means...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-037
... on the measured site and measuring the deformation caused by the gouge. The test result shows that the wall rock of underground cavern under various influence factors of blasting load and stress field adjustment of rock mass after blasting, dynamic unloading effect of rock mass is significant. 1 INTRODUCTION...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-058
... triaxial test servo-controlled strength test test result granite dilatancy R k Mechanics for Resources, Energy and Environment Kwas´niewski & ydz ba (eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00080-3 Strain-softening characterization of granitic rocks and numerical simulation...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-065
... of the cavern was created, flat jack tests were performed. For estimating the most likely state of stress in the rock mass, a global inverse analysis was carried out, which combined the overcoring and the flat jack tests results, using an appropriate methodology and a three dimensional numerical model. In order...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-002
..., partial safety factors that affect them, and by including safety margins in the calculation models. Moreover, Eurocode 7 stresses the importance of making use of test results for establishing ground parameters, and so rock joint shear tests are set to play a relevant role in the assessment of the shear...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-111
... smaller quantities of test results are available. Theme: Laboratory Testing Keywords: UCS, Dry density, Weak Sedimentary. Eurock 2012 Page 2 1 INTRODUCTION Rock strength is probably the most important characteristic for engineering design of both structures interacting with rock or earthworks involving...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-195
... ABSTRACT: The paper deals with the assessment of limestone macadam quality in limestone mining sector in Estonia. It provides test results on various raw materials with different mining-geological conditions, and obtained by surface miners Wirtgen 2500SM, Vermeer Terrain-Leveler T1255...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-048
... parameters as well as their variation according to the block displacement. The roughness of the uncovered joint wall was surveyed and analyzed, the statistical basic strength parameters were determined for low stresses and comparisons were made with the test results. 1 INTRODUCTION The test was performed...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-025
... strength marble investigation hydraulic fracturing fracture toughness test result compressive strength thesis point load msc thesis determination indirect tensile strength University Rock Mechanics in Civil and Environmental Engineering Zhao, Labiouse, Dudt & Mathier (eds) © 2010 Taylor...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-010
... ABSTRACT: In this study, the effect of calcium carbonate on triaxial compression strength, uni-axial compression strength (UCS), indirect tensile strength ( σ t) and slake durability index (Id) were investigated. Additionally, according to triaxial compression strength tests results were...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-057
... are available that take into account the micro- and macro-structure, specimen size and prepa- ration, loading and testing conditions and analysis of the test results (ISRM 1981, 1985). On other hand, no standards exit yet on determination of strength prop- erties of rock under dynamic or varying loading rates...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-022
... construction is in use). In general, weathering includes two dominant processes (Fookes 1988), physical and chemical weathering. Reservoir Characterization Miš�ević marl procedure Upstream Oil & Gas Croatia test result strength cohesion investigation structural geology strength...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-038
... was verified against published results of laboratory tests on plates of slate and charnockite, carried out to check the validity of existing flow laws. The joints flow analyses, realized to verify the numerical model, have shown very good agreement with the laboratory tests' results. This, together...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-046
... to some limits? Of course, influence of weathering cycles number can be also a subject of further investigation. 4 EXAMPLES OF TEST RESULTS AS CONCLUSIONS In attention to approve proposed additions to shear test procedure, marls from two locations in surrounding of town Split were tested. Samples of marls...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-093
... the linear strength criterion is sometimes found to be applicable to various particular rock materials, it is not, in general, of a universal character. Analysis of the triaxial test results for sixteen different volcanic rocks revealed that parameter v' usually increases in an exponential or linear manner...

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