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Keywords: input parameter
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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-2017-062
... behaves as it does. Upstream Oil & Gas residual strength procedure sensitivity analysis strength input parameter procedia engineering 191 tensile strength reservoir geomechanics contact cohesion contact tensile strength Reservoir Characterization flat-jointed material particle...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-036
... are used to correlate data of the four mentioned input parameters of artificial neural networks with uniaxial compressive strength data as network targets. Selection of input parameters is based on a vast literature review in this area. Due to the fact that standard experimental test methods based on...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-141
..., tillite) and igneous rocks (granitoids and dolerite). A back propagation artificial neural network was developed and trained in order to predict UCS. The input parameters were unit weight γ, (Is ( 50 )), (σ t ), and lithology. The lithology was introduced in the neural network as a qualitative input...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-039
... similar classification systems in providing an accurate estimation of TBM penetration rate has had limited success due to the nature of the weights assigned to the input parameters. The results of many investigations on this topic have shown a weak correlation between TBM penetration rate and RMR. This...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-076
... Intelligence elasticity machine learning fuzzy logic input parameter procedia engineering 191 dry density correlation uniaxial compressive strength genetic algorithm expression programming Gene Expression Programming equation gep method Reservoir Characterization Upstream Oil & Gas behnia...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-158
..., roof lithology and the cutting direction of the continuous miner. Laboratory strength testing on shale in the immediate roof was done and the test results were used as input parameters into the Examine2D modelling. The numerical modelling results were analysed in an attempt to correlate the modelling...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-182
... stability problems. To solve these problems empirical, numerical and analytical methods are frequently used. All of the mentioned methods require input parameters such as strength and deformability properties of rock mass. Conventionally, insitu large-scale tests are required to determine the rock mass...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-082
... of the stress dependent input parameters for pea gravel used as backfill. The input parameters have been calibrated using results from large oedometer tests and direct shear tests on a numerical oedometer test. To verify the obtained input parameters, a numerical shear test has been performed. It can...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-026
... stress crack damage stress Upstream Oil & Gas input parameter neural network physical property mean value compressive strength best performance porosity intelligent tool granite Artificial Intelligence resistance different combination prediction ANN model compressive behavior...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-008
... Abstract The uniaxial compressive strength of rock material (UCS) is one of the fundamental input parameters for engineering applications to be constructed on/in rock masses such as deep slopes, tunnels and dams. However, preparation of the high quality cores for laboratory studies is...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-006
... analysis the influence of individual input parameters on the model output is investigated. Based on the sensitivity analysis insignificant parameters can be excluded from further design and interaction of different parameters can be revealed. Uncertainty analysis Uncertainty analysis investigates the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-110
... rock mass. More accurate knowledge of the inputs permits reliability of the analyses to be enhanced and excessive safety margins to be avoided. The task of this study was to assess the impact of the key input parameters on slope stability of the open pit mine inYakutia. A parametric analysis of such...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-102
... calculation the stochastic character of the input parameters. In the first example the stochastic character of shear strength characteristics of soils is considered. The second example takes into account the stochastic character of the basic parameters of dynamic load (frequency and amplitude of the dynamic...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-098
... important to describe relations between input parameters in an empirical model if one wants to obtain accurate results during stochastic analysis. In this paper, we run two different Monte Carlo simulations for the comparison of results generated from empirical Hoek-Brown failure criterion. First simulation...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-011
... Abstract: Rock Mass Rating (RMR) and Q systems are the rock mass classification schemes most widely used in mining and tunneling. However, the authors experienced some difficulties in determining some input parameters for geotechnical evaluations at mine sites, such as strength, joint...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-153
... Abstract: Traditionally, tunnel lining design has been performed using deterministic analyses and conservative partial factors. Reliability methods offer a more rational approach to this process by incorporating the uncertainty in the input parameters and evaluating the probability of failure...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-141
... design the excavation. limestone case rockmass DISL Diederich Upstream Oil & Gas dimension eurock 2012 granite Reservoir Characterization reservoir geomechanics volumetric strain input parameter hdz GSI excavation damage zone EDZ strength variation threshold limestone...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-089
..., and/or predictive indices such as fracture toughness, Schmidt hammer, Shore hardness, Punch penetration and DRI tests have been widely used as input parameters for predicting TBM performance (Graham 1976, Farmer & Glossop 1980, Blinheim 1979, Bamfrod 1984, Dollinger et al. 1998), a variety of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-126
... simulation strength input parameter model parameter slope stability analysis arrangement assembly deformation circular element Rock Mechanics in Civil and Environmental Engineering Zhao, Labiouse, Dudt & Mathier (eds) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-58654-2 Effects of model...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-152
... carried out to collect the representative rock samples for determination of geotechnical properties of rock. These properties have been used as input parameters for the three dimensional finite difference slope analysis using FLAC-3D code. The present study reveals that the slope is critically stable but...

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