Rock Support and Reinforcement Practice in Mining

Transcription

1 PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON GROUND SUPPORT KALGOORLIE/WESTERN AUSTRALIA/15-17 MARCH 1999 Rock Support and Reinforcement Practice in Mining Edited by Ernesto Villaescusa Western Australian School of Mines, Kalgoorlie, Western Australia Christopher R.Windsor & Alan G.Thompson Rock Technology, Perth, Western Australia UNIVERS1TATSBIBUOTHLK HANNOVER TECHNISCHE INFORMATIONSBiBLIOTHEK f A. A. BALKEMA/ROTTERDAM/BROOKFIELD/1999

2 Rock Support and Reinforcement Practice in Mining, Villaescusa, Windsor & Thompson (eds) 1999 Balkema, Rotterdam, ISBN Table of contents Foreword IX Distinguished lectures The evolution of support and reinforcement philosophy and practice for underground mining 3 excavations KT. Brown Support for very weak rock associated with faults and shear zones 19 KHoek 1 Design, analysis, testing and monitoring applications Keynote lecture: Systematic design of reinforcement and support schemes for excavations 35 in jointed rock CR.Windsor Formulating a site specific support system design methodology 59 ADaehnke Corrosivity classification of the underground environment 69 C.Li&K.Lindblad A study of corrosion in underground reinforcement at Mount Isa Mines, Australia 77 J.Robinson & D.B.Tyler An Australian perspective to grouting for cablebolt reinforcement 83 E.Villaescusa The performance of grouted split tube rock bolt systems 91 AG.Thompson & D.J.Finn Performance of the S wellex bolt in hard and soft rocks 103 CLi & U.Hdkansson Reinforcement of underground excavations using the CT Bolt 109 EVillaescusa & J.Wright

3 2 Mesh and membrane support systems Performance assessment of mesh for ground control applications 119 AG.Thompson, CR.Windsor & G.W.Cadby In-situ trials for structural membrane support 131 LWojno & ZJoper In-situ trials and field testing of two polymer restraint membranes 139 D.J.Finn, RTeasdale & C.R.Windsor Laboratory testing of weld mesh for rock support 155 EVillaescusa 3 Shotcrete Keynote lecture: International practices and trends in sprayed concrete 163 T.AMelbye An investigation into the behaviour of shotcrete pillars 183 J.Hadjigeorgiou, F.Habiyaremye, J.S.Lessard & P.Andrieux The rationale, design and implementation of steel fibre reinforced wet shotcrete, in highly 193 stressed hard rock tunnels, where rapid development advance is needed, in South Africa A.J.S.Spearing & W.ANaismith The use of shotcrete in Australian underground mining - A contractors perspective 199 M.J. K. Clements The important properties of steel fibre reinforced shotcrete (SFRC) used in mining 209 R.Ratcliffe Shotcrete trials and applications in poor ground conditions at Mount Isa Mines 219 T.Li&B.Cribb The design of shotcrete linings for excavations created by drill and blast methods 231 C. R. Windsor &A.G. Thompson 4 Support and reinforcement in metalliferous mines Keynote lecture: The reinforcement process in underground mining 245 E.Villaescusa Integrated ground management - An essential component of our licence to operate 259 AS. Logan Rock bolting practice and the geotechnical management system at Darlot Gold Mine 267 D.Chen & D.Collopy Developments in ground control at Outokumpu's Forrestania Nickel Mines, Western 277 Australia CCarr, P.lMppalainen & M.P.Sandy Choices in ground reinforcement at Mt Charlotte Mine 285 P.AMikula VI

4 Productivity gains through improved rock reinforcement at McArthur River Mining 295 C.J. Schubert & C. M Stewart Reinforcement design investigations at Big Bell 301 M. P. Sandy & J. R. Player The development of a ground support system at the Pasminco Broken Hill Mine 317 N. SRauert, P.W.Butcher, P.M. Ormsby & K.PTully 5 Support in burst-prone ground Retainment support for dynamic events in mines 329 T.R.Stacey & W.D.Ortlepp Observations of the dynamic performance of South African tunnel support systems 335 AT.Haile The use of elongate support in the South African Mining Industry 343 F.J.Glisson, D.H. Kullmann & A EVidal da Silva Assessment of precast cellular lightweight concrete (C.L.C.) support structures 349 P.N. Erasmus & J. Smit Containment support for large static and dynamic deformations in mines 359 W.D.Ortlepp, T.R.Stacey & H.AD.Kirsten 6 Safety and training Development and implementation of new ground support standards at Mount Isa Mines 367 Limited Y.Potvin, D.B.Tyler, G.MacSporran, J.Robinson, I.Thin, D.Beck &M.Hudyma Practical considerations in the training of miners on rock bolting 373 J.Hadjigeorgiou, KHammond & F.Lemy Geotechnical mining regulations in Western Australia 377 AM. Lang Elimination of fatalities taskforce - Underground rockfalls project 387 S.M. Harvey Continuous improvement in geotechnical design and practice 395 T.Li 1 Strata control in coal mines Keynote lecture: Roof strata reinforcement - Achievements and challenges 405 P.G. Fuller Innovations on stability control of roadways within soft strata in underground coal mines 417 in China CWang VII

5 Development of roofbolting in Australian coal mining 425 M. Rataj & M. Yearby Author index 437 VIII