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Keywords: metals & mining
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-129
...). In addition, data can be represented in three-dimensions with the aid of a suitable work-station. metals & mining Scotland knowledge management programme contaminant contaminated land Case History investigation sandstone contaminated ground site investigation risk assessment Germany...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-119
... groundwater mechanism groundwater surface area characteristic metals & mining drilling fluid formulation concentration alkaline groundwater cation exchange mineral CWD sample Coal Washery Discard pH reduction kaolinite coal content reduction dissolution 2000. CRC Press. Permission...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-272
... and grouted micropile method to prevent uneven settlement. INTRODUCTION In Korea, coal was important energy source in 1960';s to 80's, but since early 90's, coal industry has declined causing many coal mines closed. metals & mining mined cavity geological structure subsidence Reservoir...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-284
... and shotcrete facing a bond. It was previously considered not suitable for use on soft soil ground. resistance foundation soil bearing capacity excavation metals & mining vertical strengthening soil mass soft soil area deep excavation vertical strengthened body Thickness jth soil nail...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-338
... at Crowthorne and backfilled with either London Clay or Bramshill Sand. Pipeline Corrosion riser corrosion Thickness metals & mining Subsurface Corrosion strength materials and corrosion well integrity steel coupon corrosion product strips reduction Transport Research Laboratory mild...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-483
... 100 m and has a projected depth of 325 m. Sandsloot is currently the largest open pit platinum mine in the world and is one of six potential open pits in the area. Upstream Oil & Gas programme design 3 hangingwall configuration metals & mining slope design stack configuration...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-548
... upper end metals & mining complex reservoir immediate roof weighting coal bed methane Upstream Oil & Gas Prop Strata Movement roof behavior coal seam gas displacement Strata Behavior Strata Control DEM model stability dip angle dip direction stress distribution bedding plane...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-523
... into the UDEC model. reverse scarp History flexural excavation metals & mining Tasmania centre pit schist western wall displacement discontinuity sequence North Pit slope angle Horizontal Drainhole savage river foliation shear Orebody ANALYSIS OF FLEXURAL TOPPLING AT AUSTRALIAN...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-430
... dips in excess of 16o. Sliding occurs along the bedding plane "weak seams". Groundwater has compounded slope stability. metals & mining peak friction angle cohesion weak seam displacement in-situ test shear test drilling operation reaction block laboratory testing landslide...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-528
... and Yangquan coal mine administration in Shanxi province. relation hard coal seam top coal coal seam thick coal seam basic mechanics problem displacement immediate roof Efficiency metals & mining coal seam longwall top-coal stiffness Strata Behavior experiment China application...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-549
... to be, therefore, more suitable. However, such blasting method also has its faults. footwall Thickness convergence seam thickness variation Ostrava rock bolt thickness variation Longwall exploitation propagation Upstream Oil & Gas metals & mining friction gallery adjacent rock seam...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-534
... space metals & mining orientation disintegration zone machine learning explosive breakage geophysical observation interpretation destruction stress field mining work Artificial Intelligence Reorganization peri-contour part synergetic process deposit 2000. CRC Press. Permission...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-497
... years. structural geology depressurisation Reservoir Characterization coal Upstream Oil & Gas seam stability movement adjacent ground movement operation aquifer depressurisation batter stability Australia Latrobe Valley batter pit slope stability metals & mining regional...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-560
... management hazard area HDC Seddon Street societal risk risk assessment New Zealand sink hole collapse sinkhole collapse hazard zone metals & mining stope criteria Waihi probability risk and uncertainty assessment mitigation measure Effectiveness motorist sink hole ABSTRACT...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-437
... and geotechnical character of the overburden that is to be removed must be known, so that optimal pit design and management techniques are used. structural geology moisture content discontinuity waikato coal region Reservoir Characterization coalfield rock mass strength open pit metals & mining...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-545
... the failure mechanisms associated with the roof beam failure above cavities of varying geometry, more confidence in the modelled failure loads was necessary. reservoir geomechanics mechanism full-scale test Reservoir Characterization displacement loading pad sandstone metals & mining...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-432
... or columnar, the incidence of classic wedge or toppling mechanisms is low. Significant material weakening and mass relaxation deformations may occur with short-term exposure, but the nature of any intact material bridges between defects is difficult to observe let alone measure and categorise. metals...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-588
... at the surface or due groundwater lowering also can lead to the appearance of sinkholes at the surface. In fact, most induced sinkholes (i.e. those caused or accelerated by human activity) are formed as a result of roof failures in unconsolidated deposits. metals & mining sinkhole formation...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-622
... wedges which do form may possess internal stability due to clamping or to tensile strength of rock bridges. operational safety semi-empirical hazard assessment approach apex height effective span wedge hazard assessment approach Occurrence Index metals & mining Viability Index liner...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-626
... and unexpected outburst incidents are still a major concern for underground coal mining. Nitsan(1977), Ogawa(1985), Yamada et al(1989), Rabinovitch et al(1998) and Frid et al(1999) observed electromagnetic emission accompanying failures of a variety of rocks. metals & mining coal adsorption capacity...

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