Preface ...................................................................... IX Opening address Geotechnical monitoring in surface and underground mining - An overview ....... 3 E.T.Brown Keynote lectures Some ideas on the use of mine induced seismic monitoring to characterize a fractured rockmass based on a conceptual stress-velocity-seismicity- geomechanical model .......................................................... 15 W.F.Bawden Measuring stress and deformation in rock masses .............................. 33 C.R.Windsor Technical papers Seismic monitoring at Long Shaft in the Kambalda region - A case study ....... 55 G.J.Auld A remote controlled monitoring system for tests in underground structures .... 65 B.Bazargan-Sabet Three decades in instrumentation ............................................. 73 B.P.Boisen and R.B.Monroe Stress measurement with overcoring technique in Xincheng Gold Mine ........... 79 M.Cai, L.Qiao, C.Li, J.Yu and T.Yang Stress measurement with hydraulic fracturing technique in Ekou Mine .......... 87 M.Cai, B.Yu, W.Wu, G.Chen and L.Jia Improvement of a spiral strain gauge to monitor load and strains on cable bolts used as ground support ................................................. 91 P.Choquet Deformation monitoring using the Global Positioning System .................. 101 P.A.Collier Deformations or errors - On data control and analysis in mining deformation surveys ......................................................... 111 X.L.Ding Recent experiences with the borehole slotter for measuring in-situ stress ... 117 K.J.Dugan, I.H.Hulls and D.R.Miller The use of specific energy as a drillability index .......................... 125 P.Dunn, C.Roberts and B.Ballardin A 2-d model of skin rock burst and its application to rock burst monitoring .................................................................. 133 A.V.Dyskin, L.N.Germanovich and K.B.Ustinov Piezometric monitoring of bauxite residue management facilities ............. 143 D.Elias and M.Briggs An empirical concept for open pit slope monitoring .......................... 149 W.R.Feltus Victorious East failure at Ora Banda-A case study ........................... 155 W.R.Feltus Geophysical monitoring in a room and pillars talc mine in Italy ............. 161 L.Ferrero, A.Godio and L.Sambuelli Application of continuous monitoring to investigate the rock mass response to mechanised pillar extraction ............................................. 169 I.L.Follington and I.N.Hutchinson Monitoring seismic events, Eastern Goldfields, Western Australia ............ 175 P.J.Gregson Pillar size and stope span design at the Cadjebut Mine, Western Australia ... 183 C.Gwatkin, D.Lawrence, C.Moormann, M.Lee, K.McNabb, L.Wardle and M.Wold An approach for back slope stability analysis ............................... 195 R.A.Halatchev, P.Stephanov, D.A.Gabeva-Halatcheva Rock slope classification for the optimal design of monitoring networks ..... 201 A.Haines Groundwater monitoring - Essential for planning mine dewatering/ depressurization ............................................................ 211 M.O.Hillman The use of extensometers for monitoring stope block behaviour at Porgera, Papua New Guinea ............................................................ 215 P.B.Hills On the accuracy of multi-failure triaxial test for determination of peak and residual strengths of rocks ............................................. 223 S.M.F.Hossaini and V.S.Vutukuri Monitoring of rock pressure behaviour for a stope and prediction of roof weighting ................................................................... 229 Hou Zhongjie and Wang Xinyi An instrumentation program for performance monitoring of a cable bolt reinforced rockmass ......................................................... 237 D.J.Hutchinson and M.S.Diederichs Surveying in a geotechnical environment ..................................... 245 S.Jackson Specific energy as a criterion for drillability of rocks - A laboratory study ....................................................................... 253 A.K.Jain and D.P.Singh Open pit slope design and monitoring - A deterministic approach ............. 265 P.M.James Study on the features and classification of floor heave for roadway driven in soft rocks ............................................................... 275 Jiang Yaodong, Lu Shiliang, Sun Yonglian and Zhou Chuliang Stability monitoring on the West Wall of the Muja open cut .................. 283 G.G.Joass MultiVib - An inexpensive and flexible approach to far field blast monitoring .................................................................. 293 D. La Rosa and A.Cocker Innovations in subsurface subsidence monitoring techniques .................. 299 J.J.Lakeland Survey based open pit wall monitoring - Experience based realities .......... 303 A.M.Lang, C.F.Swindells and G.J.Higham Piezometers at great depth - Hydrogeology at Malanjkhand Copper Project, India ....................................................................... 311 A.R.Leventhal Geotechnical instrumentation and ground behaviour monitoring at Mount Isa ... 321 A.S.Logan, E.Villaescusa, V.R.Stampton,M.A.Struthers and M.L.Bloss Detection of abandoned mine workings at KCGM's open pit operations .......... 331 P.Loubser Strata pressure law for roadway in soft rocks and relationship between support and surrounding rock ................................................ 339 Lu Shiliang and Wang Caigen Underground mining applications of the UCQ regional seismic network ......... 345 B.McKavanagh, K.McCue, B.Boreham, G.Gibson, J.Hafner, G.Klenowski and R.Cuthbertson Monitoring rock mass response to mining ..................................... 357 A.J.Mendecki A technique for preparing rock mass discontinuity geometry files for slope stability monitoring design ........................................... 365 A.G.Meyers, S.D.Priest and D.J.Walker The influence of geotechnical monitoring on mine design at Mt Charlotte ..... 375 P.Mikula A laboratory technique for predicting subsidence due to dewatering in the Collie Coal Basin ........................................................... 383 H.R.Nikraz and M.E.Press Monitoring of post-failure pillar behaviour - Laboratory studies ............ 393 R.Ormonde and T.Szwedzicki Monitoring for prediction of pit wall instability: Examples from two Western Australian open pits ................................................ 401 C.M.Orr, J.Moncrieff, M.Horswill and L.Hill Instrumentation of roof support for colliery pillar extraction .............. 409 J.Shepherd and T.Lewandowski Prediction and monitoring of ground movement in an opencast mine by model study ....................................................................... 417 T.N.Singh, M.Goyal and V.K.Singh Observation and auscultation of the geotechnical behaviour of a slope in an open cast mine influenced by old underground mining (South-western part of France) .............................................. 427 V.Soukatchoff, R.Hadadou, D.Driancourt and Y.Paquette Understanding pit slope movements ........................................... 435 T.D.Sullivan Research on the ultrasonic wave-spectrum method and its application ......... 447 Sun Yonglian, Lu Shiliang, Zhou Chuliang and Jiang Yaodong Stability study and mineralogical evaluation of clays for lignite mine ...... 455 S.Tangchawal, S.Phuvichit and V.Pisutha-Arnond Optimisation of rock reinforcement design through field monitoring .......... 463 G.C.Tarrant Theory and strategy for monitoring the performance of rock reinforcement .... 473 A.G.Thompson and C.R.Windsor Confirmation of a failure mechanism using open pit monitoring methods ....... 483 P.W.Thompson Identification of a slope failure over a year before final collapse using multiple monitoring methods ................................................. 491 P.W.Thompson and S.Cierlitza Instrumentation monitoring at an underground mine to establish failure mechanisms, confirm numerical modelling and determine safe working conditions .................................................................. 501 P.W.Thompson, S.MacGregor and P.Dight Rock stress change monitoring using CSIRO HI Cells and Yoke Gauges .......... 513 R.J.Walton Author index ................................................................ 523