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Keywords: MPa
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-333
... for the rotation of the mixing blade, down/up speed, rotational speed and the flow of the injected mixture. untreated soil execution parameter diameter compressive strength MPa grout laboratory sample strength compression test uniaxial compressive strength sludge deposit soft soil...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-574
... testing are under way or expected to start in the future. laboratory test average value Reservoir Characterization site characterisation Strait Almarchal Unit Algecira MPa tunnel load test convergence gallery flysch unit Tarifa Gallery Almarchal pressuremeter test tarifa...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-034
.... Reservoir Characterization exponent failure criterion Artificial Intelligence criterion prediction Upstream Oil & Gas test result criteria hoek-brown criterion MPa machine learning strength sigma 1 envelope failure envelope estimation equation triaxial strength rock mass sigma 3...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-050
... mass rock mass field test result UDEC prediction result MPa explosion problem DISCRETE ELEMENT MODELLING OF AN EXPLOSION TEST IN GRANITE S.G. Chen1, J. Zhao2, A. Makurat3 and C. Madshus3 ABSTRACT A field explosion test is conducted to investigate the shock wave propagation in jointed rock...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-207
... tur e den sit y and th e max imu m cra ck le ngt h i f it is co mpa red t o t hat o f r ock mate ria l. INTRODUCTI ON Th e eva lua ti on of th e v alu e of the d efo rma bi lit y mod ulu s t o be ass umed for t he roc k mas s i s a d iff ic ult ta sk wh en a con ti nuo us eq uiv ale nt ap pro ac h i s...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-216
... MPa strength fine-grained sedimentary rock shale mudshale elasticity water content Reservoir Characterization Upstream Oil & Gas mudstone moisture content reduction mechanical behavior mudrock compressive strength clayshale uniaxial compressive strength mechanical behaviour THE...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-597
... & Gas liner Reservoir Characterization orientation plane Gauss instability increment Artificial Intelligence Displacement vector plot separation closing plane elastic-plastic model failure mechanism structural unit compliance matrix MPa ith plane underground cavity deformation...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-612
... reached a maximum of 4 – 5 MPa at a distance of 2 – 3 m from the drift, when the highest concentration of stress was expected. The vertical stress variation was consistent with calculations by the three dimensional FEM program, ANSYS. Furthermore, the stress measured by the over coring method just about...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-587
... geomechanics rock massif Reservoir Characterization strength geomechanical model stability shear resistance powerhouse procedure stress-strain state Upstream Oil & Gas displacement stress state MPa arrangement modeling transformer room investigation excavation PHYSICAL MODELING OF ROCK...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-017
... displacement minor principal stress right wall Upstream Oil & Gas sidewall excavation reservoir geomechanics powerhouse cavern stress analysis MPa Reservoir Characterization cavern contour scale 1 tensile-stress area principal stress consecutive excavation stage principal...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-007
... lava of strengths ranging from 50 to 150 MPa. The properties of the soft lava show an uncon fined compressive strength of between 34 and 44 MPa. (average 39 MPa.) with a Youngs modulus of 3] GPa. and a Poisson ratio of 0.42. These strata overlie the full sequence of Upper Elsburg horizons with uniaxial...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-042
... reservoir geomechanics stability condition specimen vorkshop area strength programme investigation yorkshop area cable Reservoir Characterization displacement convergence MPa pillar deposit stabilization measure Upstream Oil & Gas Workshop Area layout pillar 4 stress...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-030
... the application of the above, consider an 8x4:2 pillar of material having UCS = 100 MPa, free of foundation or creep effects. The pillar strength can then be estimated to be a. - 100xO,40xl,Ixl,3xl,2xl,Oxl,O = 69 MPa (± perhaps 25 MPa) Wherever possible, back-analyses of actual pillar strengths in the...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-025
... investigation Fracture design and containment well integrity borehole 2 simple test tensile strength indication MPa determination packer Static and Dynamic Considerations in Rock Engineering, Brummer (ed.) © 1990 Balkema, Rotterdam. ISBN 90 6191 1532 Hydro-fracturing and fluid injection data from...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-004
... boreability sandstone MPa tunnel Static and Dynamic Considerations in Rock Engineering. Brummer (ed) © 1990 Balkema, RoNerdam. ISBN 90 6191 1532 Boreability assessments for the Lesotho Highlands Water Project G.T.Blindheim A. Boniface Keeve Steynlnc. Lesotho Highlands Consultants, Randburg, South Africa...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-015
... rock caverns (Lindbo. 1989). high pressure (some MPa) repeatedly applies at rocks through rock cavern linings. It is necessary to investigate long-term rack fatigue to evaluate the stability and design of underground rock caverns for SMES and high-pressure gas storage. Since the early 1970's. fatigue...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-172
... NFEMP(Singh, 1988). This code is used to simulate borehole breakouts in hard crystalline rock. wellbore pressure management fran radius aa MPa breakout directicn damagevector ad equaticn damageplane Upstream Oil & Gas borehole breakout Damage Material Model directien central...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-033
... bande de frequence ultrasonique ou des mesures sans pression de confinement. Pour combler ce manque de donnees, nous avons developpe un dispositif de barre resonnante sous pression de confinement (jusqu'à 45 MPa) donnant des mesures très fiables de l'attenuation intrinsèque dans la bande sonique (2 kHz...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-024
... MPa fracture permeability rubber sleeve Rock at Great Depth, Maury & Fourmaintraux (eds), e 1989Balkema, Rotterdam. ISBN 90 6191 9754 Effect of confining pressure on gas permeability of tight sandstones Effets de la pression de confinement sur la permeabilite au gaz dans les gres compacts...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-009
... controlled multipurpose triaxial apparatus Three series of tests conducted at the constant strain rates of 5×10–5 sec -1 and 10–5 sec-1 on samples of Fangshan granite and sandstone have been performed at various confining pressures from 17 to 400 MPa and temperatures from 20 to 250°C. In order to study the...

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