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841115 Design constraints for full-face tunnelling machines in coal mines
13A The Kansas portion of the tristate lead and zinc district was studied in order to compile maps and reports on the location and extent of past mining activities and the resulting hazardous surface effects of mining. Three maps have been prepared that show: (1) extent of underground ~'orkings and mine shafts, (2) hazardous mine openings including open mine shafts and mine collapses and (3) waste piles and tailings ponds. In addition, tabulations are included for all mine hazards as well as large waste piles and hazardous tailings ponds.
841111 Study of stability problems and hazard evaluation of the Oklahoma portion of the tristate mining area Luza, K V US Bureau of Mines report 0FR76-83, Feb 1983, 147P Approximately 2240 acres are underlain by underground lead and zinc mines in northeastern Oklahoma and approximately 2900 acres are overlain by mine and mill waste materials. The principal objectives of this study arc to: (1) compile on a series of maps the location and extent of past mining activities and the resulting surface effects, (2) identify hazardous areas with potential for future damage to persons or property, and (3) consider methods for providing public protection from existing and potentially hazardous conditions.
841115 Design constraints for full-face tunnelling machines in coal mines Farmer, I W; Glossop, N H lnt J Min Engng V1, N1, April 1983, P57-70 The only development tunnel driven in Britain using a full- face tunnel boring machine, the Sea Drift at Dawdon Colliery, Durham, UK, is an offshore~ cross measures drift through Coal Measures strata. Good progress was made on the first of the three drive sections, in competent sandstone, but adverse ground conditions: an anticlinal structure, three small faults, a major fault zone, weak sheared ground and some roof instability close to the faults finally caused the machine to be withdrawn before the second section was completed. It is concluded that tunnel boring machines are unsuitable in Coal Measure rocks where weak ground - fault zones, intraformational shear zones, coal seams, detached roof rocks and highly layered or bedded rocks - may be encountered.
841116 Design of high-extraction panels in evaporite mines. Technical note Cook, R F Int J Min Engng V1, N1, April 1983, P79-82
841112 Study of stability problems and hazard evaluation in the Missouri portion of the tri-state mining area McFarland, M C; Brown, J C US Bureau of Mines report 0FR97-83, 30 April 1983, 141P
To establish the effect of differing geological conditions on the yield pillar extraction technique, the 'narrow' high extraction panels were modelled using linear elastic theory for far-seam strata and soft rock mechanics concepts for near-seam strata. Long-term panel stability is achieved by slow pillar strain rates.
A two year investigation using aerial photograph analysis, fieldwork, library research and interviews, disclosed 469 hazardous sites resulting from past zinc-lead mining in the vicinity of Joplin, Montana, USA. These hazards include open shafts, subsidence pits, and damage to buildings. Other than backfilling shafts, nothing has been done to stabilize undermined areas.
841117 Rock mechanics works for tunnelling projects (In Turkish) Vardar, M Kaya Mek Bul NI, Oct 1982, P9-26
Tunnels See also: 841062, 841140, 841163, 841166, 841238, 841285, 841296, 841298, 841303, 841314, 841344 841113 Geotechnical problems (In Italian) Barla, G; Stragiotti, L Gailerie Grandi Opere Sotterranee I/6, N15-16, 1982, P39-50 Reviews the most important geotechnical problems related to tunnels: rock mass characterization and modelling of tunnel behaviour during excavation and subsequent to support installation. The role of observations and in situ measurements is briefly discussed and some examples, related to the Italian portion of the Frejus Tunnel, are considered.
841114 Evolution of excavation and rock support techniques (In Italian) Barisone, G; Fornaro, M; Gecchele, G; Innaurato, N; Mancini, R; Patrucco, M; Pelizza, S Gallerie Graudi Opere Sotterrauee V6, N15-16, 1982, P53-69 A review of current practice and future developments in rock support and excavation work with reference to large tunnel construction. Progress in the use of metal arches, rock bolting and face protective devices is described using examples of recent tunnels in Italy and elsewhere. Separate treatment is given to excavation systems: conventional methods, continuous mechanical excavation techniques and blasted rock removal are considered.
Outlines the technical and engineering geological investigations involved in the design and construction of large tunnels. Technical problems related to such projects are illustrated by examples.
841118 Highly stressed areas at tunnel driving under low overburden (In German) Katzenbach, R; Breth, H Rock Mech Suppl 11, 1981, P187-201 (Paper to 29th Geomechanical Colloquium, Austrian Society for Geomechanics, Salzburg, 9-10 Oct 1980) The New Austrian Tunnelling Method is often used in tunnels with large profiles and tunnels in urban areas with low cover. The method causes the bearing capacity of the soil above the tunnel to be exploited to the limit load. A three dimensional load transfer mechanism is activated above the unsupported part of the tunnel. Using an example of tunnelling in Frankfurt clay, this load transfer mechanism is studied. It is concluded that the height of the load bearing arch depends on the dimension of the highly stressed zone which is dictated by tunnel profile, depth of tunnel, soil strength and ring closure time.
841119 Tunnel design considerations for the new German high-speed railway Braun, W M Tunn Tunnig V15, Ng, Sept 1983, P37-38 The New Austrian Tunnelling Method is to be used for the construction of a total of 116kin of railway tunnels along the southern section of West Germany's new railway line from Hannover to Wurzburg. Conventional drill and blast procedure was thought to be compatible with the NATM. Steel arch supports at reasonably close centres were augmented in the less
841111 Study of stability problems and hazard evaluation of the Oklahoma portion of the tristate mining area Luza, K V US Bureau of Mines report 0FR76-83, Feb 1983, 147P Approximately 2240 acres are underlain by underground lead and zinc mines in northeastern Oklahoma and approximately 2900 acres are overlain by mine and mill waste materials. The principal objectives of this study arc to: (1) compile on a series of maps the location and extent of past mining activities and the resulting surface effects, (2) identify hazardous areas with potential for future damage to persons or property, and (3) consider methods for providing public protection from existing and potentially hazardous conditions.
841115 Design constraints for full-face tunnelling machines in coal mines Farmer, I W; Glossop, N H lnt J Min Engng V1, N1, April 1983, P57-70 The only development tunnel driven in Britain using a full- face tunnel boring machine, the Sea Drift at Dawdon Colliery, Durham, UK, is an offshore~ cross measures drift through Coal Measures strata. Good progress was made on the first of the three drive sections, in competent sandstone, but adverse ground conditions: an anticlinal structure, three small faults, a major fault zone, weak sheared ground and some roof instability close to the faults finally caused the machine to be withdrawn before the second section was completed. It is concluded that tunnel boring machines are unsuitable in Coal Measure rocks where weak ground - fault zones, intraformational shear zones, coal seams, detached roof rocks and highly layered or bedded rocks - may be encountered.
841116 Design of high-extraction panels in evaporite mines. Technical note Cook, R F Int J Min Engng V1, N1, April 1983, P79-82
841112 Study of stability problems and hazard evaluation in the Missouri portion of the tri-state mining area McFarland, M C; Brown, J C US Bureau of Mines report 0FR97-83, 30 April 1983, 141P
To establish the effect of differing geological conditions on the yield pillar extraction technique, the 'narrow' high extraction panels were modelled using linear elastic theory for far-seam strata and soft rock mechanics concepts for near-seam strata. Long-term panel stability is achieved by slow pillar strain rates.
A two year investigation using aerial photograph analysis, fieldwork, library research and interviews, disclosed 469 hazardous sites resulting from past zinc-lead mining in the vicinity of Joplin, Montana, USA. These hazards include open shafts, subsidence pits, and damage to buildings. Other than backfilling shafts, nothing has been done to stabilize undermined areas.
841117 Rock mechanics works for tunnelling projects (In Turkish) Vardar, M Kaya Mek Bul NI, Oct 1982, P9-26
Tunnels See also: 841062, 841140, 841163, 841166, 841238, 841285, 841296, 841298, 841303, 841314, 841344 841113 Geotechnical problems (In Italian) Barla, G; Stragiotti, L Gailerie Grandi Opere Sotterranee I/6, N15-16, 1982, P39-50 Reviews the most important geotechnical problems related to tunnels: rock mass characterization and modelling of tunnel behaviour during excavation and subsequent to support installation. The role of observations and in situ measurements is briefly discussed and some examples, related to the Italian portion of the Frejus Tunnel, are considered.
841114 Evolution of excavation and rock support techniques (In Italian) Barisone, G; Fornaro, M; Gecchele, G; Innaurato, N; Mancini, R; Patrucco, M; Pelizza, S Gallerie Graudi Opere Sotterrauee V6, N15-16, 1982, P53-69 A review of current practice and future developments in rock support and excavation work with reference to large tunnel construction. Progress in the use of metal arches, rock bolting and face protective devices is described using examples of recent tunnels in Italy and elsewhere. Separate treatment is given to excavation systems: conventional methods, continuous mechanical excavation techniques and blasted rock removal are considered.
Outlines the technical and engineering geological investigations involved in the design and construction of large tunnels. Technical problems related to such projects are illustrated by examples.
841118 Highly stressed areas at tunnel driving under low overburden (In German) Katzenbach, R; Breth, H Rock Mech Suppl 11, 1981, P187-201 (Paper to 29th Geomechanical Colloquium, Austrian Society for Geomechanics, Salzburg, 9-10 Oct 1980) The New Austrian Tunnelling Method is often used in tunnels with large profiles and tunnels in urban areas with low cover. The method causes the bearing capacity of the soil above the tunnel to be exploited to the limit load. A three dimensional load transfer mechanism is activated above the unsupported part of the tunnel. Using an example of tunnelling in Frankfurt clay, this load transfer mechanism is studied. It is concluded that the height of the load bearing arch depends on the dimension of the highly stressed zone which is dictated by tunnel profile, depth of tunnel, soil strength and ring closure time.
841119 Tunnel design considerations for the new German high-speed railway Braun, W M Tunn Tunnig V15, Ng, Sept 1983, P37-38 The New Austrian Tunnelling Method is to be used for the construction of a total of 116kin of railway tunnels along the southern section of West Germany's new railway line from Hannover to Wurzburg. Conventional drill and blast procedure was thought to be compatible with the NATM. Steel arch supports at reasonably close centres were augmented in the less