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Keywords: compressive strength
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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-2017-053
...) obtained from the study area (south portal, Rohtang tunnel) in the Himalayan region. Reservoir Characterization Upstream Oil & Gas quartzitic phyllite porosity Wellbore Design quarzitic phyllite physico-mechanical behaviour compressive strength reservoir geomechanics wellbore integrity...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-148
... Uniaxial Compressive Strength (UCS), the Elastic modulus (E) value in compression, shear strength and rheological properties. These mechanical properties were examined at the University of Wollongong laboratory in relation to resin sample shape, size, height to width or diameter ratio, resin type, resin...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-036
... Abstract It is critical to obtain the rock strength along the wellbore to control drilling problems such as pipe sticking, tight hole, collapse and sand production. The purpose of this research is to predict the uniaxial compressive strength based on data of sonic travel time, formation...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-001
... density, specific gravity, static compressive strength and elastic modulus values are also determined. Petrological studies of quartzite are carried out through X-ray diffraction (XRD) test and scanning electron microscope (SEM) test. In the SHPB tests, it is observed from the stress-strain response that...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-127
... requires preliminary deposit classification into quality categories based on effective mechanical and physical properties [9, 10]. Since physico-mechanical properties, such as uniaxial compressive strength, porosity, etc., have a role in imposing restrictions on the uses of the ornamental stones products...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-141
... of chalk in underground quarries in the Parisian Basin, France. The dolomitic chalk (Saint-Martin-Le-N ud) exhibits variations in mechanical and physical properties with horizontal pillar depth, and both density and compressive strength appear to increase outwards from the core to the wall of the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-182
... Bieniawski (1989) and rock quality designation (RQD) by Deere (1963) are used. Artificial Intelligence Reservoir Characterization metals & mining Upstream Oil & Gas reservoir geomechanics reserves evaluation GSI system rock mass strength Simulation variability compressive strength...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-015
... & Dalgic 1998, Ramamurthy 1986, Barton 2000, Bhasin & Grimstad 1996). Most of these equations consider uniaxial compressive strength of intact rock material (σ ci ) as a scale parameter. The UCS value of a rock mass (σ cm ) can be estimated by reducing the UCS of intact rock based on the classification...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-025
... nearly negligible in quartzite to 90 percent of uniaxial compressive strength reduction in shale. Readers however often face difficulties in comparing the data published in different sources due to the discrepancy of manipulating and presenting exper- imental results. In view of this, the present review...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-030
... index (DRI) agreed well with uniaxial compressive strength. This confirmed that the results of mechanical properties based on UCS have a high level of reliability while evaluating the drillability. Nevertheless, the results of DRI did not represent any correlation versus Young's modulus during blasthole...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-036
... and then uniaxially loading the heated samples until the failure. Experimental results clearly showed how the UCS strength of the tested granite varies with temperature, where increasing of temperature leads an initial increment in reservoir rock's compressive strength and elastic modulus followed by...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-052
... studied predominantly quartz sandstones show different petrology from fine-grained to coarse-grained with silica, carbonate and clayey cement.The changes in rigidity as a function of temperature were documented. The analyzed data set includes the uniaxial compressive strength and indirect tensile strength...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-017
... ABSTRACT: Uniaxial compressive strength (UCS ) and Brazilian tensile strength (BTS ) are widely used in rock engineering. However, preparing standard samples for the strength tests may not always be possible for weak rocks. On the other hand, only rock fragments are available to estimate the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-047
..., Ube, Japan ABSTRACT: The Particle Flow Code (PFC) is a useful tool for simulating the failure behavior of hard rocks. However, one of the major drawbacks of the modeling is the unrealistically low ratios of simulated compressive strength to tensile strength for hard rock specimens. This means that the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-018
... compressive strength (UCS) and the Brazilian tensile strength (BTS) are the most commonly used rock properties. The UCS/BTS ratio is used as an indicator of rock brittleness and to estimate UCS from BTS (or vice versa). However, the relation between UCS and BTS has not been investigated in detail. This paper...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-038
... therefore been aimed to investigate the effect of pore fluid (brine) concentration and degree of saturation on mechanical properties of tight reservoir rocks. Siltstone samples obtained from the Eidsvold in Queensland, were tested for unconfined compressive strength (UCS) after varyingly saturating them (03...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-125
... ABSTRACT: This paper presents static and dynamic experimental characterization of quartzite rock subjected to static unconfined compressive strength test and dynamic split Hopkinson pressure bar (SHPB) tests. The dynamic compression tests on rock samples are performed at strain rates from 10...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-096
... approach, its applicability is not discussed in previous studies (Tokashiki & Aydan 2010). Reservoir Characterization strength cantilever beam classification stability compressive strength reservoir geomechanics Island evaluation Artificial Intelligence Aydan geology RMQR rock cliff...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-118
... effect correlation Reservoir Characterization reservoir geomechanics rock pillar strength Rock mechanics Upstream Oil & Gas uniaxial compressive strength dimension specimen discontinuity compressive strength rock mass equation Ayre da Silva pillar shape effect São Paulo Rock...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-173
... and the RFC-system for estimating tunnel conditions in deep gold mines yielded similar rock strength values. Hoek-Brown method of rock mass strength determination resulted in unrealistically low uniaxial compressive strength and relatively low global compressive strength values. Behavior of 7 m wide...

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