1-20 of 46
Keywords: strength parameter
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0095
... failure mode hydropower station Reservoir Characterization Engineering strength parameter argillaceous siltstone structural geology cohesion sandstone safety factor stability rock mass weak interlayer mechanical parameter Artificial Intelligence interlayer rock slope weathered depth...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1538
... ABSTRACT: Selection of appropriate shear strength parameters for mine spoil slope stability analysis and design is difficult because it requires prohibitively large laboratory equipment to test characteristic spoil samples under meaningful stresses. A convenient alternative to estimate mine...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0487
... and compared with literature values. Guidelines for estimating the strength parameters mobilization can be concluded, including comparisons to usual intact rock parameters such as mi or UCS. Based on the implications of this study further development of strength mobilization models in hard rock masses...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-899
... a relatively low differential pressure. Recommendations to the design of a CO2 reservoir are discussed. reservoir geomechanics Upstream Oil & Gas experiment US government Sequestration strength parameter subsurface storage Reservoir Characterization structural geology co 2 mechanical...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-806
... evolution for stress characterization are significant and add up to other important uncertainties in such analyses like the estimation of strength parameters. reservoir geomechanics borehole imaging Reservoir Characterization Reservoir Surveillance production monitoring wellbore seismic France...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-713
... and has some applicability. wellbore integrity hard rock pressure sensitivity Reservoir Characterization Upstream Oil & Gas peak strength reservoir geomechanics strength failure criterion strength parameter Wellbore Design criterion marble residual strength cohesion MPa internal...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1366
..., an understanding of the mechanism(s) and associated material strength parameters, was required. A back-analysis and calibration of the strength parameters for the salient rock mass and structural features was undertaken. The back-analysis consisted of understanding the conditions and trigger for the slope movement...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-463
... on extension tests leading to a simpler constitutive model. pore pressure strength parameter effective confinement stress reservoir geomechanics reverse triaxial compression test MPa Upstream Oil & Gas Colombia Reservoir Characterization internal friction angle Rock mechanics triaxial...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0866
... ABSTRACT: This paper investigates the effect that small sample sizes have on uncertainties associated with intact rock strength parameter estimations, using various combinations of strength data (namely, uniaxial and triaxial compressive, uniaxial compressive and indirect tensile...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0863
... strength parameters representative of all potential sliding failure planes. Because of improvements in laboratory testing equipment and changes in analysis methodology over the past approximately thirty years, older data from direct shear testing of intact rock specimens used for analysis with the shear...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0946
... data. Seeking to minimize this testing-inherent error, previous research at Montana Tech has demonstrated the alternate method of limited displacement multi-stage direct shear (LDMDS) testing to yield more accurate strength parameters when shearing a single unique specimen under multiple normal...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0724
... correlation sandstone toughness Simpson Castlegate sandstone fracture toughness specimen strength parameter inclination fracture toughness data Manco Shale Brazilian tensile strength 1. INTRODUCTION Hydraulic fracturing is a key to make unconventional (shale gas and shale oil) reservoirs...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0156
... ABSTRACT: Pit slope design relies on appropriate selection of design strength parameters. This selection is not trivial given the inherent heterogeneity of rock masses. In strong rocks, step-path failures may develop through combination of planar shear along joints and failure through intact...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0677
..., necessitating scalped specimens, will generate conservative shear strength parameters. displacement shear box failure envelope shear stress direct shear box strength direct shear test specimen normal stress kPa strength parameter scalped specimen shear strength friction angle Upstream Oil...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-077
... with mercury injection testing. Strength testing, which was on blocks from outcrop exposures or shallow (<60 m) depth cores, included unconfined and triaxial compression at effective confining pressures up to 20 MPa that gave Mohr Coulomb strength parameters of cohesion (c') between 1.5 and 2.5 MPa...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-135
... acceptable level of uncertainty in the estimations. Also, a comparison of the results from our analysis with actual rock strength data shows that the probability of obtaining reliable strength parameter estimations using small samples may be very low. We further discuss the impact of this on on-going...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-193
... in the residual part indicates the residual strength. The negative slope part should describe the strength evolution from peak strength to residual strength. Mohr-Coulomb (M-C) criterion is employed and the inter-relations between post-peak behavior of the complete stress-strain curve and strength parameter...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-363
... are not available, preliminary parameters of coal-mass are calculated for a specimen size of 1.5 m. Young’s modulus and Poisson’s ratio are 3.0 GPa and 0.25, respectively. The Hoek-Brown peak strength parameters "m", "s," and "a" of the coal-mass are 1.659, 0.015, and 0.5, respectively. The unconfined peak...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-552
... strength parameter numerical model stress condition rock mass behaviour metals & mining 1 INTRODUCTION Numerical methods are utilized in geomechanical engineering to improve understanding of physical processes, to determine stress or strain at specific instances in space or time and to predict...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7007
... of the block. Under designing the arch dam it was investigated the stress strain state of the system "arch dam - rock foundation" in operate stage and at achievement of the limiting state on 6 scenarios. slide plane 1 strength parameter rock block arch dam Upstream Oil & Gas abutment rock...

Product(s) added to cart

Close Modal