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Future developments of full-section tunnelling machines based on experience gained in the mining industry (In German)
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846237 Experiences with tunnel boring machines in fault zones influence on penetration rate and utilization (In German) Beckmann, U: Krause, T In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) V2. P761770. Publ Rotterdam. A. A. Balkema. 1982 TBM performance records show very low advance rates of a few metres per month in fault zones compared with one thousand metres per month in good conditions. The influence of these fault zones on penetration rate is illustrated with seven case histories.
846238 Pre-investigation and geological follow-up of a TBM project in Austria Buechi, E; Karnelo, E In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) V2, P771777. Publ Rotterdam." A. A. Balkema, 1982 Pre-investigation of geological conditions was carried out for the proposed Wolla Tunnel. Austria. When it was decided to use a TBM a classification of 7 groups was prepared. Comparison of the predicted conditions with the effective geological tunnel profile showed good correspondence.
846239 Mechanical driving of horizontal-type tunnels with large diameter, by means of tunnel boring machines, taking as examples France, Guatemala and Switzerland (In German) Eistert, M In: Rock Mechanics: Careens and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) ~ , P779787. Publ Rotterdam." A. A. Balkema. 1982 The Wirth GmbH manufactures full-face-tunnelling machines and enlarging machines. Full diameter- and enlarging machines for tunnel projects with large diameters are compared economically and technically. It is shown how the tunnel diameter and the technical rock data affect the design of the tunnel boring machines. By means of various job sites the technical improvement of the W l R T H tunnel boring machines is explained. Auth.
846240 Underground excavation with roadheaders, range of application and possibilities of further development (In German) Gehring, K In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) ~ . P789799. Publ Rotterdam: A. A. Balkema. 1982 846241
Future developments of full-section tunnelling machines based on experience gained in the mining industry (In German) Masson. C In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) ~ , P809813. Publ Rotterdam." A. A. Balkema, 1982 Consistently high tunnel driving performances are being achieved in a wide range of rock conditions through modifications to tunnelling machines. These include: alterations to the drill point, repositioning of the disk's chisels, shortening of the machine in the area of the drill point and the development of new lining arrangements.
846242 Application of tunnel boring machines to bad rock conditions Robbins. R J In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) V2. P~2"~'36. Pub/Rotterdam: .q. .q. Balkema. 1982 846243 Applications of selective cutting machines for roadheading in difficult strata conditions (in German) 1,-nger. E In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) I~. P849~?5,~. Puhl Rotterdam: ,4. A. Balkema, 1982 Use of selective cutting machines for driving roadways and tunnels has increased over the years. The machines are independent of the cross-section of the excavation and have excellent manoeuvrability. The selective cutting machine has recently been used for two new applications: driving a pipe through an area with small cover where large amounts ofcarbonated water were encountered, and driving a tunnel using the NATM method.
846244 Rockburst problems in Norwegian highway tunnels - recent case histories Myrvang, A M; Grimstad. E In: Rockharsts: Prea~ction and Control (papers to the Symposium, London, 20 October 1983)P133-139. Puhl London. IMM. 1983 The Norwegian Oord countryside necessitates a large number of highway tunnels. Many of these tunnels have encountered serious rock burst problems. Traditionally, tunnels have been constructed along and around the fjords. This has often created rock burst problems due to gravitational "valley" side stresses. Today, long tunnels are constructed through the mountain ranges between fjords. This has in many cases created rock burst problems due to horizontal, geological stresses. This paper describes case histories presenting both types of rock burst problems. In all tunnels rock stress measurements have been performed at a relatively early stage of tunnelling, and rock burst "forecasts" for the rest of the tunnel have been made. The types, effect, cost and longtime reliability of rock bolting and other stabilization methods are discussed. Auth.
P o w e r plants 846245 Design and construction of the Agns IV power cavern. Part 1: geotechnical investigations Almero, g A: Kutzner, C; Schetelig, K int Water Power Dam Constr i/36, N6, June 1984. P21-25 Describes the geotechnical investigations carried out for the construction of the power cavern of the Agus IV Power Scheme, Mindanao, The Philippines. Bad geological conditions, particularly the presence of highly fractured basalt, led to modifications during construction.
846246 Design and construction of the Agns IV power cavern. Part 2: design and construction Falcon, R P: Kutzner, C; Uy, M R Int Water Power Dam Constr V36, NT. July 1984, P35-40 Due to bad geological conditions and the large size of the cavern for the Agus IV Power Scheme, Mindanao, The Philippines, the New Austrian Tunnelling Method with anchors was chosen as the support system. Support of the opening had to be supplemented by replacement ofa tufflayer and extensive grouting.
846237 Experiences with tunnel boring machines in fault zones influence on penetration rate and utilization (In German) Beckmann, U: Krause, T In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) V2. P761770. Publ Rotterdam. A. A. Balkema. 1982 TBM performance records show very low advance rates of a few metres per month in fault zones compared with one thousand metres per month in good conditions. The influence of these fault zones on penetration rate is illustrated with seven case histories.
846238 Pre-investigation and geological follow-up of a TBM project in Austria Buechi, E; Karnelo, E In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) V2, P771777. Publ Rotterdam." A. A. Balkema, 1982 Pre-investigation of geological conditions was carried out for the proposed Wolla Tunnel. Austria. When it was decided to use a TBM a classification of 7 groups was prepared. Comparison of the predicted conditions with the effective geological tunnel profile showed good correspondence.
846239 Mechanical driving of horizontal-type tunnels with large diameter, by means of tunnel boring machines, taking as examples France, Guatemala and Switzerland (In German) Eistert, M In: Rock Mechanics: Careens and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) ~ , P779787. Publ Rotterdam." A. A. Balkema. 1982 The Wirth GmbH manufactures full-face-tunnelling machines and enlarging machines. Full diameter- and enlarging machines for tunnel projects with large diameters are compared economically and technically. It is shown how the tunnel diameter and the technical rock data affect the design of the tunnel boring machines. By means of various job sites the technical improvement of the W l R T H tunnel boring machines is explained. Auth.
846240 Underground excavation with roadheaders, range of application and possibilities of further development (In German) Gehring, K In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) ~ . P789799. Publ Rotterdam: A. A. Balkema. 1982 846241
Future developments of full-section tunnelling machines based on experience gained in the mining industry (In German) Masson. C In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) ~ , P809813. Publ Rotterdam." A. A. Balkema, 1982 Consistently high tunnel driving performances are being achieved in a wide range of rock conditions through modifications to tunnelling machines. These include: alterations to the drill point, repositioning of the disk's chisels, shortening of the machine in the area of the drill point and the development of new lining arrangements.
846242 Application of tunnel boring machines to bad rock conditions Robbins. R J In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) V2. P~2"~'36. Pub/Rotterdam: .q. .q. Balkema. 1982 846243 Applications of selective cutting machines for roadheading in difficult strata conditions (in German) 1,-nger. E In: Rock Mechanics: Caverns and Pressure Shafts (papers to the I S R M Symposium, Aachen, 26-28 May 1982) I~. P849~?5,~. Puhl Rotterdam: ,4. A. Balkema, 1982 Use of selective cutting machines for driving roadways and tunnels has increased over the years. The machines are independent of the cross-section of the excavation and have excellent manoeuvrability. The selective cutting machine has recently been used for two new applications: driving a pipe through an area with small cover where large amounts ofcarbonated water were encountered, and driving a tunnel using the NATM method.
846244 Rockburst problems in Norwegian highway tunnels - recent case histories Myrvang, A M; Grimstad. E In: Rockharsts: Prea~ction and Control (papers to the Symposium, London, 20 October 1983)P133-139. Puhl London. IMM. 1983 The Norwegian Oord countryside necessitates a large number of highway tunnels. Many of these tunnels have encountered serious rock burst problems. Traditionally, tunnels have been constructed along and around the fjords. This has often created rock burst problems due to gravitational "valley" side stresses. Today, long tunnels are constructed through the mountain ranges between fjords. This has in many cases created rock burst problems due to horizontal, geological stresses. This paper describes case histories presenting both types of rock burst problems. In all tunnels rock stress measurements have been performed at a relatively early stage of tunnelling, and rock burst "forecasts" for the rest of the tunnel have been made. The types, effect, cost and longtime reliability of rock bolting and other stabilization methods are discussed. Auth.
P o w e r plants 846245 Design and construction of the Agns IV power cavern. Part 1: geotechnical investigations Almero, g A: Kutzner, C; Schetelig, K int Water Power Dam Constr i/36, N6, June 1984. P21-25 Describes the geotechnical investigations carried out for the construction of the power cavern of the Agus IV Power Scheme, Mindanao, The Philippines. Bad geological conditions, particularly the presence of highly fractured basalt, led to modifications during construction.
846246 Design and construction of the Agns IV power cavern. Part 2: design and construction Falcon, R P: Kutzner, C; Uy, M R Int Water Power Dam Constr V36, NT. July 1984, P35-40 Due to bad geological conditions and the large size of the cavern for the Agus IV Power Scheme, Mindanao, The Philippines, the New Austrian Tunnelling Method with anchors was chosen as the support system. Support of the opening had to be supplemented by replacement ofa tufflayer and extensive grouting.