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Simulation of mining systems by object-oriented graphical modelling
108A ground conditions: elastoplastic in stable ground; FennerPacher in slightly unstable ground; and catastrophic in unstable ground.
line in Japan are tabled, showing the high, medium, or low potentials at each for landslides, rock falls, debris flows, overflow water, flood, and flash flood.
932284 Model of a cyclic pressuremeter test using a generalised elustoplustic model (In French) Saitta, A; Canou, J; Sab, K; Dormieux, L Proc lOth European Conference on Soil Mechanics and Foundation Engineering, Florence, 26-30 May 1991 V1, P251254. Publ Rotterdam: A A Balkema, 1991
932288 Information-oriented construction system for reclamation work Matsumoto, T; Satoh, M; Hashimoto, A Microcomput Civ Engng V7, N4, 1992, P323-332
Simulation of cyclic pressuremeter testing is presented, using the generalised elastoplastic constitutive model of Zienkiewicz et al (1985). An interpolation parameter is introduced which permits simulation of plastic strains inside the yield surface, which is important for the description of cyclic testing. According to the value assigned to this interpolation parameter, phenomena such as adaptation, accommodation, or ratchet can be modelled.
932285 Numerical analysis of visco-elustoplastic soil behaviour considering large deformations Schad, H; Breinlinger, F Proc lOth European Conference on Soil Mechanics and Foundation Engineering, Florence, 26-30 May 1991 V1, P255260. Publ Rotterdam." A A Balkema, 1991 The advantages of using a uniform velocity formulation and the principle of material objectivity are first briefly examined. Large strain finite element modelling is then presented of a multistage triaxial test and a biaxial test. The constitutive model used consists of an elastoplastic part coupled in parallel with a Maxwell model. The elastoplastic part is based on an extended Cam Clay concept which incorporates an isotropic and kinematic hardening rule. The deviatoric section for both yielding and potential surface is defined using a relation which allows a smooth transition between the Coulomb hexagon and the von Mises circle, making possible the accurate description of complex stress paths.
Design methods 932286 DEGRES: a software to design open-pit geometry and to draw open-pit plans Tanays, E; Cojean, R; Hantz, D int I Surf Min V6, N2, 1992, P91-98
An information-oriented system, developed as a management tool for the construction of the offshore island for Kansai International Airport, is described. The system has 5 subsystems: work result management; deposition configuration management; reclamation configuration management;measurement/survey process; and earth volume management. A virtual grid of 10m squares, the minimum unit for earth volume management and settlement calculation, is placed on the objective operating area. Work result data, including coordinates, azimuth-angle, and earth volume, are contributed into deposition earth volume for each grid and consolidation calculations and earth volume management carried out.
932289 New approach to studying complete rock engineering problems Hudson, J A; Harrison, J P Q J Engng GeM V25, N2, 1992, P93-105 An innovative approach is presented to help illustrate and evaluate the manner in which one geotechnical parameter can affect another. The interaction matrix concept is introduced and applications to rock engineering demonstrated. Small (4x4) matrices are presented which show interdependence of discontinuity geometry parameters and of rock mass structure, in situ stress, water flow, and engineering construction. Other matrices illustrate the fundamental modes of rock fracture and relations between normal, wrench, and thrust faulting. Applications from project checklist to the logical basis of project design are expected for this novel approach.
932290 Simulation of mining systems by object-orientated graphical modelling Tsiflakos, K; Owen, D Trans Inst Min MetaU (Sect A Min lnd) VIO1, May-Aug 1992, PA75-A78
Planning for an open pit mine must take into account constraints on overall pit slope stability (geological, structural, geotechnical) and economic and technical constraints for design of intermediate and ultimate pits. A computer program, DEGRES, has been developed to assist in this planning. It considers individual slopes and their steps and intersections between slopes. It has been tested for the case of the SainteMarie coal mine in Carmaux, France.
Mine engineers and managers are faced with the problems of evaluation, selection, and implementation of the optimum mining systems. Simulation techniques allow examination of certain options before implementation. An interactive technique for modelling mine systems for simulation purposes is presented. The most important concepts of the model are object-oriented modelling and graphical visualisation of the model. After the graphical model of the system has been constructed, it can be converted to a simulation model. The method presented can be applied to mine transport and systems configuration.
932287 Knowledge-bused expert system for natural disaster prediction using geomorphelngical and geeingical information Kashiyama, K; Ohashi, M; Suzuki, T Microcomput Civ Engng V7, N4, 1992, P283-290
932291 Dragline selection using intelligent computer techniques Denby, B; Schofield, D Trans Inst Min Metall (Sect A Min lnd) VIOl, May-Aug 1992, PA79-A84
A system is presented, based on the COMEX expert system shell, which evaluates disaster potential using data from aerial photographs, geological maps, and any other sources available for a specific site. System structure and an example of its use are illustrated. Inference results from 9 sites along a railway
The Minder (Mine Design using Expert Reasoning) system is based on a multi-level expert system running on a PC. Its primary use is for selection of surface mining excavation and haulage equipment for optimum use with a given set of input criteria, but it can also give expert advice on the use of selected
© 1993 Pergamon Press Ltd. Reproduction not permitted
line in Japan are tabled, showing the high, medium, or low potentials at each for landslides, rock falls, debris flows, overflow water, flood, and flash flood.
932284 Model of a cyclic pressuremeter test using a generalised elustoplustic model (In French) Saitta, A; Canou, J; Sab, K; Dormieux, L Proc lOth European Conference on Soil Mechanics and Foundation Engineering, Florence, 26-30 May 1991 V1, P251254. Publ Rotterdam: A A Balkema, 1991
932288 Information-oriented construction system for reclamation work Matsumoto, T; Satoh, M; Hashimoto, A Microcomput Civ Engng V7, N4, 1992, P323-332
Simulation of cyclic pressuremeter testing is presented, using the generalised elastoplastic constitutive model of Zienkiewicz et al (1985). An interpolation parameter is introduced which permits simulation of plastic strains inside the yield surface, which is important for the description of cyclic testing. According to the value assigned to this interpolation parameter, phenomena such as adaptation, accommodation, or ratchet can be modelled.
932285 Numerical analysis of visco-elustoplastic soil behaviour considering large deformations Schad, H; Breinlinger, F Proc lOth European Conference on Soil Mechanics and Foundation Engineering, Florence, 26-30 May 1991 V1, P255260. Publ Rotterdam." A A Balkema, 1991 The advantages of using a uniform velocity formulation and the principle of material objectivity are first briefly examined. Large strain finite element modelling is then presented of a multistage triaxial test and a biaxial test. The constitutive model used consists of an elastoplastic part coupled in parallel with a Maxwell model. The elastoplastic part is based on an extended Cam Clay concept which incorporates an isotropic and kinematic hardening rule. The deviatoric section for both yielding and potential surface is defined using a relation which allows a smooth transition between the Coulomb hexagon and the von Mises circle, making possible the accurate description of complex stress paths.
Design methods 932286 DEGRES: a software to design open-pit geometry and to draw open-pit plans Tanays, E; Cojean, R; Hantz, D int I Surf Min V6, N2, 1992, P91-98
An information-oriented system, developed as a management tool for the construction of the offshore island for Kansai International Airport, is described. The system has 5 subsystems: work result management; deposition configuration management; reclamation configuration management;measurement/survey process; and earth volume management. A virtual grid of 10m squares, the minimum unit for earth volume management and settlement calculation, is placed on the objective operating area. Work result data, including coordinates, azimuth-angle, and earth volume, are contributed into deposition earth volume for each grid and consolidation calculations and earth volume management carried out.
932289 New approach to studying complete rock engineering problems Hudson, J A; Harrison, J P Q J Engng GeM V25, N2, 1992, P93-105 An innovative approach is presented to help illustrate and evaluate the manner in which one geotechnical parameter can affect another. The interaction matrix concept is introduced and applications to rock engineering demonstrated. Small (4x4) matrices are presented which show interdependence of discontinuity geometry parameters and of rock mass structure, in situ stress, water flow, and engineering construction. Other matrices illustrate the fundamental modes of rock fracture and relations between normal, wrench, and thrust faulting. Applications from project checklist to the logical basis of project design are expected for this novel approach.
932290 Simulation of mining systems by object-orientated graphical modelling Tsiflakos, K; Owen, D Trans Inst Min MetaU (Sect A Min lnd) VIO1, May-Aug 1992, PA75-A78
Planning for an open pit mine must take into account constraints on overall pit slope stability (geological, structural, geotechnical) and economic and technical constraints for design of intermediate and ultimate pits. A computer program, DEGRES, has been developed to assist in this planning. It considers individual slopes and their steps and intersections between slopes. It has been tested for the case of the SainteMarie coal mine in Carmaux, France.
Mine engineers and managers are faced with the problems of evaluation, selection, and implementation of the optimum mining systems. Simulation techniques allow examination of certain options before implementation. An interactive technique for modelling mine systems for simulation purposes is presented. The most important concepts of the model are object-oriented modelling and graphical visualisation of the model. After the graphical model of the system has been constructed, it can be converted to a simulation model. The method presented can be applied to mine transport and systems configuration.
932287 Knowledge-bused expert system for natural disaster prediction using geomorphelngical and geeingical information Kashiyama, K; Ohashi, M; Suzuki, T Microcomput Civ Engng V7, N4, 1992, P283-290
932291 Dragline selection using intelligent computer techniques Denby, B; Schofield, D Trans Inst Min Metall (Sect A Min lnd) VIOl, May-Aug 1992, PA79-A84
A system is presented, based on the COMEX expert system shell, which evaluates disaster potential using data from aerial photographs, geological maps, and any other sources available for a specific site. System structure and an example of its use are illustrated. Inference results from 9 sites along a railway
The Minder (Mine Design using Expert Reasoning) system is based on a multi-level expert system running on a PC. Its primary use is for selection of surface mining excavation and haulage equipment for optimum use with a given set of input criteria, but it can also give expert advice on the use of selected
© 1993 Pergamon Press Ltd. Reproduction not permitted