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Keywords: calibration
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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-2017-104
... motivation of the continuum approach is the numerical efficiency of the 3D coupled hydraulic- mechanical simulations of hydraulic fracturing process in comparison to other alternatives. The input parameters of the numerical model from the best available well log and reservoir data are calibrated from...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-102
... opening. The paper provides a critical overview of the design philosophy of RBD, the components necessary for its application, and the methods by which the probability of failure may be computed. In addition, it discusses how partial factors are calibrated from RBD and how code development can be...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-200
..., representative spatially continuous data sets showing excavation convergence. These data sets can be especially useful for the calibration and forecasting of excavation convergence in non-linear, three-dimensional, strain softening, discontinuum finite-element models (DFEM). This paper discusses the findings...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-085
... nucleation and propagation, has been used. By means of a specific numerical code (ELFEN), the pillar behavior has been simulated from the laboratory test scale to the real in situ scale and geometry. The constitutive model, integrating Rotating Crack Model and Mohr Coulomb failure loci, was calibrated on the...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-154
... mechanics Vosge sandstone reservoir geomechanics laboratory test calibration international journal Wellbore Design clumped particle mechanism Moca limestone Upstream Oil & Gas clump model modeling clump logic rock strength device rock material ABSTRACT: The improvement of PCD cutting...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-185
.... The accurate assessment of the deformations induced by tunneling is strongly dependent on the choice of the appropriate constitutive model and on the parameter calibration against experimental data. The case study presented in this paper deals with the construction works of a new highway in Southern...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-122
... rock strength correlation combinations for determining WB Sunder complex geological conditions. A "well quality index" (WQI) parameter was defined for calibrating the shear failure gradient (SFG), taking into account the over-gauge observed and the difference between the SFG and mud weight. In addition...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-142
... bonded particle models based on the Particle Discrete Element Method. Synthetic rock samples are generated and their static elastic properties are calibrated by manipulating microproperties (assembly organization and normal and shear contact stiffness). The static and dynamic properties of the rock cores...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-035
... Abstract One of unknown rock mass properties in rock mechanics is the elastic modulus. Many researchers have proposed a variety of methods to estimate this rock mass property. One of the method is 3D numerical model calibration to obtain the key mechanical properties of the rock mass. At Mae...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-031
... cutter test mechanical specific energy bit selection modeling calibration atmospheric condition back-rake angle stiffness Upstream Oil & Gas cutter particle evaporite contact stiffness discrete element method contact model Rock Mechanics for Resources, Energy and Environment Kwas...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-015
... revealing unusual performance according to the long-term monitoring results. To get proper input data for the 3D model fitting the measurement results, a series of local and regional models allowing for step-by-step calibration of mechanical, hydraulic, thermal and rheological parameters of bedrock...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-012
... future and whether the future behavior is acceptable. This paper presents an initial attempt to calibrate and model the time-dependent behavior of profiles P3 and P5 of the west wall (see Fig. 1) using UDEC. The time period considered in this paper is January 1996 to February 2002. Both profiles have...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-134
... accomplished by changing the values of cohesion and friction angle, which define a Mohr-Coulomb strength, as a function of plastic strain. Artificial Intelligence material model tunnel 2 metals & mining Upstream Oil & Gas displacement calibration reservoir geomechanics strength...

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