1-20 of 34
Keywords: algorithm
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 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 European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-005
... Abstract The practical algorithm for determination of burst hazard zones using data from an automated system of mining pressure control is suggested. A procedure of an emergence prognosis is designed using the index of burst hazard, KUD, that characterizes the geo-mechanical state of rock...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-089
... seismicity under controlled conditions for different loading scenarios as conventional versus progressive, and pulse-like water injections. In this work, we consider continuous recordings and apply recently developed automated full waveform detection and location algorithms which are based on the stacking of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-051
... utilised as inputs variables to the tool condition monitoring system. Acceptable pattern recognition rates were obtained for multiple input variables combinations with different pattern recognition algorithms, particularly, that composed by AE root mean square (AErms) and torque-on-bit (tob). 1...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-041
... investigated. Upstream Oil & Gas anisotropy ratio experimental study isotropic material reservoir geomechanics strength variation strength anisotropy Reservoir Characterization transversely isotropic material transversely isotropic media algorithm Artificial Intelligence isotropic plane...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-001
... ABSTRACT: In this paper, a few original developments are discussed. First, novel block generation and contact detection algorithms had been developed. Second, it is argued that numerous possible lines of thrust in a jointed horizontal roof beam can lead to equilibrium, and a single result from...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-085
... geometry pillar numerical simulation algorithm propagation construction materials Simulation gypsum pillar fracture propagation failure mechanism Continuum Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-070
... much smaller than the area of overlap between joint walls. To acquire the true contact area of an opened joint, a numerical algorithm has been developed by considering a continuous increase in the wall aperture with accumulating shear displacements. A constitutive model taking into account the opening...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-148
...-free particle method performs the coupling procedure in an arbitrary form where the natural movement of the material is traced. A frictional contact algorithm is included whereas an artificial damping is introduced in MPM to resemble the material damping. Moreover, a strain smoothening-technique is...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-149
... process, once cohesion is completely lost, SPH algorithms for the approximation of field functions will take place to capture the traction free surface and material separation. In this paper, the theoretical developments together with implementation algorithms for both SPH and constitutive models are...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-175
... stope instrument machine learning Artificial Intelligence displacement metals & mining extensometer test site real time system reservoir geomechanics Engineering environmental engineering algorithm aalto university stress state change real time stress change estimation vector...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-023
... & Gas top middle area rock face Cliff Rockfall Hazard complex reservoir orientation assessment algorithm dip direction geometry fracture instable block hydraulic fracturing new development Rock Structure Rockfall Hazard limestone escarpment feldkofel coordinate system ABSTRACT...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-085
... procedure wavelet-based denoised terrestrial laser estimation Standard Deviation coefficient algorithm DWT denoised surface machine learning Upstream Oil & Gas roughness characterization University threshold noise detail coefficient joint roughness ABSTRACT: Numerous measurement and...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-096
... stratification of different electromagnetic wave velocity is designed and Least Square QR (LSQR) algorithm is employed to resolve large sparse inversion equations. Analyses are performed from perspectives of both whole profiles and selected slides. The simulation results show that GPR velocity tomography is...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-073
... Intelligence deviation machine learning Upstream Oil & Gas FFT method characteristic algorithm in-situ stress orientation variation borehole stress orientation variation failure data divider complex reservoir variation series length noise fractal dimension fractal series Rock...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-138
... calculation and iterative strategy. Typically, the algorithms are based on the initial stress scheme used in FEs, in which the strain increments are prescribed to the constitutive equations. A variety of such algorithms has been proposed since the original constant stiffness and constant stress procedures...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-158
... Entrepreneurship (co-funded by the European Regional Development Fund (ERDF)) to come up with a rockfall monitoring and warning system. The main goal of this project is to develop an operational rockfall monitoring and early detection system by integrating instruments, innovative algorithms and a database with a...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-160
... Abstract This paper addresses the performance analysis of an optimization algorithm from the field of evolutionary computation, namely an Evolution Strategy, in back analysis to evaluate the geomechanical parameters of the formation surrounding an underground structure. The algorithm is first...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-006
... parameter set or range. Different deterministic and stochastic optimization schemes are available. Popular deterministic approaches are: response surface methods, hill climbing methods or gradient based strategies. Typical stochastic approaches are: evolutionary algorithms, neural network approaches...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-015
... passive seismic imaging algorithm based on earthquake seismology to jointly locate induced microseismic events and update the velocity of the rock model illuminated by the seismicity. We calculate travel-time based on the fast sweeping method to account for complex 3D distribution of velocity and use the...

Product(s) added to cart

Close Modal