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Planning, investigation and design of the Burwood Beach ocean outfall, Newcastle NSW
160A 893432 Role of short term effects on the delayed behaviour of tunnels (In French) Mirth, D N: Rousset. G
Proc 6th International Conference on Rock zWechanics, Montreal, 30 Aug-lO Sept 1987 V2, Pl153-1156. Publ Rotterdam: A A Balkema. 1987 The influence of initial critical stages, excavation and support setting, on the final equilibrium of a drift in a rock mass with time dependent properties is examined. The rheologic model used has instantaneous and delayed deformation components. Convergence, and rupture, viscoelastic and elastic zones around a circular tunnel are analysed, and results applied to support design principles. The effect of loading rate on failure propagation around a circular gallery is examined.
893433 Highly mechanized tunnelling in hard rock - a case study of Enonkoski Mine, Finland Soikkeli, T; Pulkkinen, M Proc Asian Mining '88, Kuala Lumpur, 8-10 March 1988 P205-209. Publ London: IMM, 1988 The effects of advanced mcchanisation and efficient drifting on mining efficiency at the Cu-Ni mine are examined. Geology of the orebody is first briefly described. The program adopted to produce 6300m of tunnels to enable production to start at the earliest opportunity with lowest cost is then detailed. Drilling patterns and equipment, explosives, support and scaling, and mucking procedures are described. Production drilling procedures and equipment are also reported.
893434 Development of roadheading equipment for tunnelling by NATM Sandtner, A; Gehring, K H Proc Tunnelling '88, London, 18-21 April 1988 P275-288. Publ London: lMM, 1988 NATM has traditionally used drill and blast, but mechanisation by roadheaders is under development. The principles of NATM are first re-stated. Requirements for mechanisation are assessed, and a system based around the AMT 70 roadheader is presented. Excavation, loading, travelling, and support placing are described. Comparison with drill and blast is made. The application of the technique to the Karawanken tunnels,Austria, is illustrated.
893435 Planning of underground storage of stormwater and mechanical boring of sewer shield tunnelling in Tokyo Matsumoto, K Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 VI, P41-48. Publ Parkville: AuslMM, 1987 Three tunnels were constructed in Tokyo to help control stormwater. One of relatively small section and length was constructed by NATM, but the other two, of sections 6.14m and 7.8m, were excavated using the shield method. The rock was jointed sandy mudstone, and considerable groundwater seepage was foreseen. A boom cutter and backhoe scraper were used. Details are given of equipment and techniques, control when tunnelling sharp corners and modifications and improvements made to achieve this, and backfilling of tunnel linings.
893436 Plabutseh road tunnel in Austria Pucher, K: Pinter, R Proc 6th Australian Tunnelling Conference. Afelbourne, March 1987 V1. P67-75, Publ Parkville. AuslMM. 1987 The Plabutsch tunnel is approximately Ikm long and runs through mainly dolomite, limestone and sandstone, with some schist rocks. It has a section of 100sqm as a fully transverse ventilation system is necessary for environmental reasons. Because of geological uncertainties, a 300m long test tunnel was excavated in a karstic area for proof of safety. The New Austrian Tunnelling Method was used for the major part of the tunnel. Details are presented of the tunnel and ventilation shafts and caverns.
893437 Planning, investigation and preliminary design for the Eastern Distributor Tunnels - Sydney Baxter, D A; Chappel, R A; Fishburn, B R Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 VI, P55-65. Publ Parkville: AuslMM, 1987 A major urban road tunnel project in Hawkesbury Sandstone is outlined. Main geotechnical restraints are a weathered dyke and weathered shale capping the sandstone at a portal. Rock cuttability and excavation methods are described. Roadheaders are suitable for most of the shallow arch tunnelling, but blasting may be used in special situations. First support will be rock reinforcement and shotcrete, with steel ribs where necessary. Final support will be an in situ concrete lining. Construction concepts and special requirements at shallow underground junctions are described.
893438 Planning, investigation and design of the Burwood Beach ocean outfall, Newcastle NSW Kinghorne, J P; McMahon, M D; Osorio, J D C Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 VI, P77-87. Publ Parkville: AuslMM, 1987 The outfall tunnel will be 2.7m diameter and nearly 2km long. It is close to colliery workings in the Newcastle Coal Measures. After three alternatives were considered, the tunnel was sited in Waratah Sandstone immediately beneath the colliery workings. Tenders were invited for the project. Drill and blast, roadheader, and tunnel boring machine excavation were examined, and the final option chosen. The diffuser shaft will be constructed by the drill up method.
893439 Discontinuum analysis of a tunnel with 'Decoupled Finite Element Analysis' Swoboda, G; Ebner, H Proc ECONMIG 86, Stuttgart, 16-18 September 1986 V2, 12P. Publ Stuttgart: University of Stuttgart. 1986 The Decoupled Finite Element Analysis method, which uses a constraint joint element, is introduced. A test example of a two part cantilever is used to demonstrate its applicability. Mesh generation for jointed rock is described. Tunnelling by NATM is simulated in rocks with uninterrupted and masonry type joint systems. Comparison of simulations with model tests demonstrates the applicability of this technique to modelling the behaviour of shallow tunnels.
1989 Pergamon Press plc. Reproduction not permitted
Proc 6th International Conference on Rock zWechanics, Montreal, 30 Aug-lO Sept 1987 V2, Pl153-1156. Publ Rotterdam: A A Balkema. 1987 The influence of initial critical stages, excavation and support setting, on the final equilibrium of a drift in a rock mass with time dependent properties is examined. The rheologic model used has instantaneous and delayed deformation components. Convergence, and rupture, viscoelastic and elastic zones around a circular tunnel are analysed, and results applied to support design principles. The effect of loading rate on failure propagation around a circular gallery is examined.
893433 Highly mechanized tunnelling in hard rock - a case study of Enonkoski Mine, Finland Soikkeli, T; Pulkkinen, M Proc Asian Mining '88, Kuala Lumpur, 8-10 March 1988 P205-209. Publ London: IMM, 1988 The effects of advanced mcchanisation and efficient drifting on mining efficiency at the Cu-Ni mine are examined. Geology of the orebody is first briefly described. The program adopted to produce 6300m of tunnels to enable production to start at the earliest opportunity with lowest cost is then detailed. Drilling patterns and equipment, explosives, support and scaling, and mucking procedures are described. Production drilling procedures and equipment are also reported.
893434 Development of roadheading equipment for tunnelling by NATM Sandtner, A; Gehring, K H Proc Tunnelling '88, London, 18-21 April 1988 P275-288. Publ London: lMM, 1988 NATM has traditionally used drill and blast, but mechanisation by roadheaders is under development. The principles of NATM are first re-stated. Requirements for mechanisation are assessed, and a system based around the AMT 70 roadheader is presented. Excavation, loading, travelling, and support placing are described. Comparison with drill and blast is made. The application of the technique to the Karawanken tunnels,Austria, is illustrated.
893435 Planning of underground storage of stormwater and mechanical boring of sewer shield tunnelling in Tokyo Matsumoto, K Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 VI, P41-48. Publ Parkville: AuslMM, 1987 Three tunnels were constructed in Tokyo to help control stormwater. One of relatively small section and length was constructed by NATM, but the other two, of sections 6.14m and 7.8m, were excavated using the shield method. The rock was jointed sandy mudstone, and considerable groundwater seepage was foreseen. A boom cutter and backhoe scraper were used. Details are given of equipment and techniques, control when tunnelling sharp corners and modifications and improvements made to achieve this, and backfilling of tunnel linings.
893436 Plabutseh road tunnel in Austria Pucher, K: Pinter, R Proc 6th Australian Tunnelling Conference. Afelbourne, March 1987 V1. P67-75, Publ Parkville. AuslMM. 1987 The Plabutsch tunnel is approximately Ikm long and runs through mainly dolomite, limestone and sandstone, with some schist rocks. It has a section of 100sqm as a fully transverse ventilation system is necessary for environmental reasons. Because of geological uncertainties, a 300m long test tunnel was excavated in a karstic area for proof of safety. The New Austrian Tunnelling Method was used for the major part of the tunnel. Details are presented of the tunnel and ventilation shafts and caverns.
893437 Planning, investigation and preliminary design for the Eastern Distributor Tunnels - Sydney Baxter, D A; Chappel, R A; Fishburn, B R Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 VI, P55-65. Publ Parkville: AuslMM, 1987 A major urban road tunnel project in Hawkesbury Sandstone is outlined. Main geotechnical restraints are a weathered dyke and weathered shale capping the sandstone at a portal. Rock cuttability and excavation methods are described. Roadheaders are suitable for most of the shallow arch tunnelling, but blasting may be used in special situations. First support will be rock reinforcement and shotcrete, with steel ribs where necessary. Final support will be an in situ concrete lining. Construction concepts and special requirements at shallow underground junctions are described.
893438 Planning, investigation and design of the Burwood Beach ocean outfall, Newcastle NSW Kinghorne, J P; McMahon, M D; Osorio, J D C Proc 6th Australian Tunnelling Conference, Melbourne, March 1987 VI, P77-87. Publ Parkville: AuslMM, 1987 The outfall tunnel will be 2.7m diameter and nearly 2km long. It is close to colliery workings in the Newcastle Coal Measures. After three alternatives were considered, the tunnel was sited in Waratah Sandstone immediately beneath the colliery workings. Tenders were invited for the project. Drill and blast, roadheader, and tunnel boring machine excavation were examined, and the final option chosen. The diffuser shaft will be constructed by the drill up method.
893439 Discontinuum analysis of a tunnel with 'Decoupled Finite Element Analysis' Swoboda, G; Ebner, H Proc ECONMIG 86, Stuttgart, 16-18 September 1986 V2, 12P. Publ Stuttgart: University of Stuttgart. 1986 The Decoupled Finite Element Analysis method, which uses a constraint joint element, is introduced. A test example of a two part cantilever is used to demonstrate its applicability. Mesh generation for jointed rock is described. Tunnelling by NATM is simulated in rocks with uninterrupted and masonry type joint systems. Comparison of simulations with model tests demonstrates the applicability of this technique to modelling the behaviour of shallow tunnels.
1989 Pergamon Press plc. Reproduction not permitted