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Keywords: MPa
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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-030
... performed in the laboratory at the Institute for Geotechnics at ETH (IGT) in Zurich. Maximum swelling pressures of 2 to 4 MPa were measured from drilling core samples. Rock strengths (IGT, 2015) were also determined performing triaxial compression tests. The laboratory test results, which showed relatively...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-043
... satisfied, and laboratory investigation of the deformational behavior of rocks under alternative triaxial loading regimes is necessary. reservoir geomechanics CTC uniaxial amban mishra procedia engineering 191 deformational response experiment MPa loading Reservoir Characterization...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-065
... schist are shown in Figs. 1–3, respectively. Upstream Oil & Gas Rock mechanics specimen procedia engineering 191 uniaxial compression reservoir geomechanics artificial geomaterial lateral pressure MPa ultimate strength Reservoir Characterization bedding angle international journal...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-105
... induced microseismicity data were obtained from the stimulation test upon 140 m long open hole section at the well bottom. Wellhead pressure was up to 89 MPa and considerable level of flow rate was attempted up to 47 L/sec. Microseismicity observation showed a trend of lager and more frequent seismicity...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-029
... technique requires tests which give opportunity to evaluate detonators' and highly energetic materials' working in the conditions of growing confining pressures. Upstream Oil & Gas inhibitor detonator gaseous product container detonation MPa ammonium nitrate metals & mining specific...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-113
.... This study was intended for the semi-circular bend (SCB) test, which is one of the ISRM-suggested methods for determining the mode I fracture toughness of rock. The SCB test under various confining pressures from 0 to 10 MPa was performed using Kimachi sandstone. A finite element analysis of the SCB...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-109
... the earthquake was highly reliable. Reservoir Characterization flow rate borehole hydraulic fracturing interval pressure MPa Upstream Oil & Gas compliance borehole wall packer pressure reservoir geomechanics Yokoyama Earthquake stress measurement vertical stress hf test...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-114
... values of PPV W , absolute values of the reduced stresses ranged from 250 to 450 MPa. They were below permissible stress for steel arch support, amounting to σ max = 623 MPa. The vibrations registered for seismic events at Bobrek field site were safe to maintain the stability of the excavations...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-148
... time, Similar to UCS values, the average shear strength of grout samples increased with increasing curing time, Cube samples were suggested as a universal shape for testing resin products as they can be easily prepared and tested. metals & mining cohesion MPa Reservoir...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-062
... (Chen & Egger 1999). Reservoir Characterization displacement rock joint Upstream Oil & Gas bolt rod procedure reservoir geomechanics Rock mechanics international journal Artificial Intelligence rock bolt MPa enriched finite element procedure stiffness matrix equation...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-043
... determined by the Brazilian test (Bri evac et al. 2015, Unlu & Yilmaz 2014). UTS BTS BTS/ Rock type (MPa) (MPa) UTS References Bowral trachyte 13.72 12.00 0.87 Jaeger (1967) Gosford sandstone 3.59 3.72 1.04 Carrara marble 6,90 8,72 1,26 Bane granite 13.45 14.34 1.07 Mellor & Indiana limestone 5.86 6.21...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-130
... surface of the ground were 848 m/s and 562 m/s, respectively, and Young s modulus (Ef ) and Poisson s ratio ( f ) cal- culated from these velocities were about 1500 MPa and 0.1, respectively. 4.2 Test procedure Figure 5 illustrates the test procedure for the proposed method. The previously mentioned...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-154
... world show that the ratio k tends to be high at shallow depth and that it decreases at depth (Brown & Hoek 1978, Herget 1988). reservoir geomechanics underground structure Rock mechanics tunnel axis Reservoir Characterization Engineering different loading condition MPa Upstream Oil...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-184
... with ASTM standards or other methods suggested by the Table 1. In-situ multistage shear test results. Test Cohesion, Friction angle, Number c (MPa) (degrees) G2-3 0.77 35.4 G2-4 0.62 44.1 G3-2 0.52 48.3 ISRM. Laboratory tests included the following: grad- ing, dry unit weight, seismic wave velocity...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-213
... ABSTRACT: The effective pressure law for the permeability of sandstone is experimentally studied by conducting Darcy's law permeability test under various confining pressure (from 14 to 58 MPa) and pore pressure (from 8 to 23 MPa). Supercritical CO 2 as a pore fluid has been adopted instead...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-035
... coal. They could produce samples with closer mechani- cal properties to natural coal. For example, Jasinge (2010) could produce RC low rank coal samples, having 1.46 ± 0.14 MPa average uniaxial strength (1.2 1.8 MPa for natural samples), 77.43 ± 2.61 MPa Young s modulus (65 89 MPa for natural samples...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-093
... bedding plane incipient discontinuity hydraulic fracturing tensile strength incipiency parent rock MPa bedding plane ABSTRACT: This paper addresses the issue of the tensile strength of incipient discontinuities in rock and presents preliminary results from a series of laboratory studies. In...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-113
... stress cox claystone consolidation water content creep test experiment MPa clay particle creep rate Clay Rock stress concept porewater deformation creep stiffness ABSTRACT: The long-term deformation behavior of the Callovo-Oxfordian and Opalinus clay rocks has been extensively...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-173
... Characterization determination stope numerical analysis deformation MPa excavation strength value ABSTRACT: The paper discusses the reasons for the introduction of new mining system. Details of investigations to determine in situ rock mass strength are presented. Back analysis of existing mine tunnels...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-153
... stress case joint network Reservoir Characterization railway tunnel numerical modeling rock mass tunnel extensometer shallow depth MPa situ stress odenplan station Platform tunnel Magnitude ABSTRACT: At shallow depth, in situ stress can affect significantly the behavior of the rock mass...

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