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Development of the automatic GO-60 drill
82A
882235 Technical computing applications of mining planning at Hunosa Marroquin, V G; Peinador, V G; Garcia, J M; Garcia, E S Proc IJth World Mining Congress, Improvement of Mine Productim'ty and OceraU Eemmmy by Modern Teelmology, Stockholm, June 1987 VI, P73-80. Publ Rotterdam: A A Balkema, 1987 Computer assisted mine planning applied to exploitation of inclined thin coal seams is described. Resource evaluation uses a Coal Seam Data Base (BDCC) which contains extensive information on previous and present working, and geostatistical techniques are also used. A suite of computer programs (PLSTEP), which makes wide use of interactive computing and graphic output, is used to evaluate infrastructure and support design, exploitation, and surface subsidence effects.
882236 Effective use of geological and geomechanieal data in mining activity Dopita, M; Otava, R; Siska, L Proc 13tti World Milmtg Congress, Improvement of Mine Producu~ity and O~rall Economy by Modern Teeimoingy, Stockholm, June 1987 VI, P81-85. Publ Rotterdam: A A Balkema, 1987 Two computer data bases are under development as an aid to decision making and planning in the Upper Silesian basin of Czechoslovakia, GEOS is a geologicalinformation data base and holds data from boreholes and underground mines and structures. HUZ, the reserve model data base, stores aggregated knowledge of coal reserves. It consists of two parts, the first designed for new reserve models, the second storing data on the state of reserves. Reserves are recorded as geological mining units. Interlinking of GEOS and HUZ will produce a powerful design tool. 882237 Tunnel simulation in variable geological conditions Grant, D R; Miller, H D S
Proc 5th International Congress internatiomd Association of Engineering Geology, Buenos Aires, 20-25 October, 1986 VI, P291-300. Publ Rotterdam: A A Balkema, 1986 The two most important factors in costing tunnelling projects are uncertainty in predicting geological conditions and selecting the optimum construction method to match the geology. A computer model to undertake detailed feasibility analysis is described. An operational model simulates advance by drill and blast through varying geological conditions. The Monte Carlo method is used to generate random variables for actual tunnelling activity time distributions. Activity time and quantity plus unit price data are input into a cost model to determine total costs. Sensitivity analysis is performed by varying input data.
882238 Systems ~ Chui Zhengchuan
Geology and geoteehnique
Proc International Symposium on Engimeering in Complex Rock Formations, Jdfmg, 3-7 Nmmwber, 19ff6 P357-365. Publ Beijing: Science Press, 1986 Differences in the traditional engineering geology, rock mechanics, and rock hydrokinetic approaches to investigations for hydroelectric projects can lead to problems. These can be overcome by treati~ the project as a single entity, from investigation to completion, using the concept of Systems Engineering Geology (SEG). The SEG approach consists of two main parts, establishing the Geological Mathematical Model (GMM) and design optimisation. Rock classification
within SEG, description of joint elements and the equivalent body, treatment of the initial stress field and the seepage flow field, treatment of interfaces and boundaries, parameter assignment and design optimisation within the SEG are discussed.
Rock Breakage and Excavation 882239 Robotised mine - a utopia? Granholm, S; Vagenas, N; Morris. J Proc 2nd International Conference on l~m~ti~' Mining @stems, Penasyl~unia, 27.29 Oet~er 1986 Pt24-tM. Publ Pennsylvania." Pennsylvania State University, 1986 A brief overview of the present situation concerning automation of hard rock underground mines is given. Current computer controlled drill rigs are examined and the future for complete automation of drilling, and loading and transportation of ore is discussed. Present day iimitations, possible ~levelopments, and experiences to date from Sweden are described.
Drilling See a~o." 882047. 882185. 882384 882240 Development of the automatic GO-60 drill Kelly, J; England, R CIM Bull II80, N903, July 1987. P71-74 The development of an automateddown-the-hole drill rig suitable for such operations as large diameter btasthole or VCR drilling is described. The angle of the hole is controlled by maintaining the orientation of the drill head and hole straightness optimised by maintaining a constant force on the drill bit. The major considerations were hole accuracy, hole cost, bit life, and drill string cost.
882241 Deflection drilling Suttill, K Engng Min J V188, N7. July 1987. P48-51 Conventional deflection drilling using wedging or downhole drills is first examined, then three devices which control deflection without using wedges are described. The Devibor (Deviation Core Barrel) is a computer controlled device which has been used in exploration drilling in Scandinavia. The ZBE. designed for drilling vertical holes in coal mining has drilled to depths of 258m with deviation only once over borehole diameter, 216mm. The continuous whipst~k from China is also described. 882242 Well drilling by rotary-percnssive drill above ground (In French) Sabatier, G
lndustrie Minerale V69. April 1987, P201-205 When drill core is not indispensible, the use of rotary percussive drilling becomes economically attractive. Some French experiences are reported. Hydraulic rotary percussive drills are preferred to compressed air drills on grounds of penetration rate and depth achievable. Costs are about one quarter and
© 1988 Pergamon Press pie. Reproduction not permitted
882235 Technical computing applications of mining planning at Hunosa Marroquin, V G; Peinador, V G; Garcia, J M; Garcia, E S Proc IJth World Mining Congress, Improvement of Mine Productim'ty and OceraU Eemmmy by Modern Teelmology, Stockholm, June 1987 VI, P73-80. Publ Rotterdam: A A Balkema, 1987 Computer assisted mine planning applied to exploitation of inclined thin coal seams is described. Resource evaluation uses a Coal Seam Data Base (BDCC) which contains extensive information on previous and present working, and geostatistical techniques are also used. A suite of computer programs (PLSTEP), which makes wide use of interactive computing and graphic output, is used to evaluate infrastructure and support design, exploitation, and surface subsidence effects.
882236 Effective use of geological and geomechanieal data in mining activity Dopita, M; Otava, R; Siska, L Proc 13tti World Milmtg Congress, Improvement of Mine Producu~ity and O~rall Economy by Modern Teeimoingy, Stockholm, June 1987 VI, P81-85. Publ Rotterdam: A A Balkema, 1987 Two computer data bases are under development as an aid to decision making and planning in the Upper Silesian basin of Czechoslovakia, GEOS is a geologicalinformation data base and holds data from boreholes and underground mines and structures. HUZ, the reserve model data base, stores aggregated knowledge of coal reserves. It consists of two parts, the first designed for new reserve models, the second storing data on the state of reserves. Reserves are recorded as geological mining units. Interlinking of GEOS and HUZ will produce a powerful design tool. 882237 Tunnel simulation in variable geological conditions Grant, D R; Miller, H D S
Proc 5th International Congress internatiomd Association of Engineering Geology, Buenos Aires, 20-25 October, 1986 VI, P291-300. Publ Rotterdam: A A Balkema, 1986 The two most important factors in costing tunnelling projects are uncertainty in predicting geological conditions and selecting the optimum construction method to match the geology. A computer model to undertake detailed feasibility analysis is described. An operational model simulates advance by drill and blast through varying geological conditions. The Monte Carlo method is used to generate random variables for actual tunnelling activity time distributions. Activity time and quantity plus unit price data are input into a cost model to determine total costs. Sensitivity analysis is performed by varying input data.
882238 Systems ~ Chui Zhengchuan
Geology and geoteehnique
Proc International Symposium on Engimeering in Complex Rock Formations, Jdfmg, 3-7 Nmmwber, 19ff6 P357-365. Publ Beijing: Science Press, 1986 Differences in the traditional engineering geology, rock mechanics, and rock hydrokinetic approaches to investigations for hydroelectric projects can lead to problems. These can be overcome by treati~ the project as a single entity, from investigation to completion, using the concept of Systems Engineering Geology (SEG). The SEG approach consists of two main parts, establishing the Geological Mathematical Model (GMM) and design optimisation. Rock classification
within SEG, description of joint elements and the equivalent body, treatment of the initial stress field and the seepage flow field, treatment of interfaces and boundaries, parameter assignment and design optimisation within the SEG are discussed.
Rock Breakage and Excavation 882239 Robotised mine - a utopia? Granholm, S; Vagenas, N; Morris. J Proc 2nd International Conference on l~m~ti~' Mining @stems, Penasyl~unia, 27.29 Oet~er 1986 Pt24-tM. Publ Pennsylvania." Pennsylvania State University, 1986 A brief overview of the present situation concerning automation of hard rock underground mines is given. Current computer controlled drill rigs are examined and the future for complete automation of drilling, and loading and transportation of ore is discussed. Present day iimitations, possible ~levelopments, and experiences to date from Sweden are described.
Drilling See a~o." 882047. 882185. 882384 882240 Development of the automatic GO-60 drill Kelly, J; England, R CIM Bull II80, N903, July 1987. P71-74 The development of an automateddown-the-hole drill rig suitable for such operations as large diameter btasthole or VCR drilling is described. The angle of the hole is controlled by maintaining the orientation of the drill head and hole straightness optimised by maintaining a constant force on the drill bit. The major considerations were hole accuracy, hole cost, bit life, and drill string cost.
882241 Deflection drilling Suttill, K Engng Min J V188, N7. July 1987. P48-51 Conventional deflection drilling using wedging or downhole drills is first examined, then three devices which control deflection without using wedges are described. The Devibor (Deviation Core Barrel) is a computer controlled device which has been used in exploration drilling in Scandinavia. The ZBE. designed for drilling vertical holes in coal mining has drilled to depths of 258m with deviation only once over borehole diameter, 216mm. The continuous whipst~k from China is also described. 882242 Well drilling by rotary-percnssive drill above ground (In French) Sabatier, G
lndustrie Minerale V69. April 1987, P201-205 When drill core is not indispensible, the use of rotary percussive drilling becomes economically attractive. Some French experiences are reported. Hydraulic rotary percussive drills are preferred to compressed air drills on grounds of penetration rate and depth achievable. Costs are about one quarter and
© 1988 Pergamon Press pie. Reproduction not permitted