Page 633 - Rock Mechanics For Underground Mining

INDEX

Blocks 190–2, 229, 242–66, 243, 328, 345, Caving 8, 349–51, 350, 365–9, 430, 441, triaxial 101–5, 102, 103, 109, 117–8,
409, 439, 465–7, 478–9, 536 444–7, 453, 453–81, 460, 463, 466, 139–41
Body waves 277, 308, 309, 523, 532–3, 535, 467, 470–474, 484–95, 489, 490, Compression testing 88–97, 89, 96, 99–104,
537 496–506, 497, 557–8, 561–3, 580–4 100, 102, 103, 294, 413
Bolts see Rock bolts angles 77 biaxial 100, 104
Borehole 67–70, 76, 147–9, 153–6, 554, 555, block see Block caving block jointed models 11, 242
557, 561, 572 chimney see Chimney caving end effects 90, 92, 100, 104
breakout 148, 155 hangingwall see Progressive hangingwall in situ 137, 138
drilling 64–7 caving machine stiffness 92–3
extensometers 547, 548, 549–51, 550, 551, initiation and propagation 465–8 multiaxial 99–105
552, 561 mechanics 444, 445, 465, 468 point load test 97–9, 98, 113
hydraulic fracturing in 153–5 methods 349–51, 365–8, 430, 453–81 pore-water effect 87, 103–5
impression packer 68 classification 430 servocontrolled testing machines 93–4,
jacking test 138 stress see Stress caving 105, 227
logging 68–9 structures 8 specimen preparation 92, 104
strain 147, 148–51, 163 sublevel see Sublevel caving strain rate 34, 92
stress change measurements 554–6 Cementation 114 uniaxial 87–97, 89–91, 95, 97
Boundary Cemented rockfill 415 Compressive strength 78, 79, 87–92, 89,
conditions 90, 99, 167, 179 Cemented sandfill 412–4, 415, 416, 419 99–101, 106, 106, 111–5, 135, 198,
constraint equation 196 Cementing agents 410, 412, 413 383–4, 398, 399, 412–6
curvature 178, 209, 210, 212, 213 Chalk, discontinuity spacing 52, 52–3 Compressive waves 280, 524
slots 465, 468 Chimney caving 484–90, 493–5 Concrete 317, 320, 341, 364, 552–4, 577
stress 47, 148–55, 163, 175–8, 199–203, limiting equilibrium analysis 488–95, 489, Confining pressure 101–4, 101, 103, 109, 118,
206, 208–15, 212, 217, 265, 289, 490 121, 139–41
329, 420, 430, 525, mechanisms 486, 489, 493 Conformal mapping 172, 173
529–31, 532, 587 see also Plug subsidence Conformation, orebody 146, 352
and excavation shape 173, 178, 198, 201, Chlorite 48, 57, 129 Constant deviator stress damage criterion 115,
209, 211–13, 225, 265, 420 Christensen-Hugel core barrels 67 215, 215
minimising 212 Clar compass 59 Constitutive behaviour 15, 34, 35, 178, 193,
ratio 289 Clays 49, 129 195, 279, 301, 351, 397
sudden excavation 275, 287 Cleavage 47, 50, 67, 88, 117, 125, 133, 134, Constitutive equations 34, 37, 167, 173, 192–4
Boundary element methods 179, 183, 189, 140, 141 Continuous subsidence 133, 484–6, 495, 496,
195, 290, 292, 297, 301, 397, 431, Closure, excavation 272, 322, 364, 409, 436, 501, 506
432, 513 437, 464, 511–13 elastic analysis 510–3
Bray’s solution 165, 176, 203, 257, 300 Coal prediction methods 508
Breast stoping 558 mine bumps 301 and tabular orebodies 481, 487, 506
Breccia 48, 57, 114, 498 mining 313, 363–5, 379–81, 440–53, Continuous-yielding model 330, 331
Brittle-ductile transition pressure 103 506–17 Contour plots 157, 166, 216, 405
Brow stability 461 longwall 338, 364–5, 430, 440–53, Control raises 13
Brune’s model 311 440,442–51, 486, 506–17, 558 Convergence 295, 300, 301, 316, 323, 402,
Brunswick Mine, Canada 398, 399, 402 methods 364–5, 365, 440–1 435, 436, 447, 448, 511, 544, 545,
Buckling 229, 231, 233, 235, 238–40, 317, seams 299, 364–5, 386, 396, 405, 445, 482, 547, 548, 549, 550, 553, 561–3, 562,
375, 439, 451, 559 512, 521 563
Burden 457, 459, 462, 483, 525, 526, 531 Coalbrook North Colliery, South Africa 484 measurement 547, 548, 549, 550, 561
Bulking factor 480 Coal measures 49, 440, 441, 512 rates 549, 561–3
Coeur d’Alene, USA 434 volume 435
Cables 322–5, 329, 337, 340–22, 450, 564–6, Cohesion 105, 115, 125, 390, 409–18, 494 Cooling effects 145
578 Comminution, ore 308, 351, 353, 518, 527, Co-ordinate transformation 37, 78
cable bolts 334–41, 408, 428, 449, 451 532 Copper
grouted 324, 345, 558 Compartmentalisation 50 belt, Zambia 485, 487, 492
for pre-reinforcement 317, 322–5 Complex variable theory 170 furnace slag 412, 415, 426
reinforcement 127, 428 Compliance modulus 35 Core
shear force 336, 447 Compression barrels 66–7, 67
see also Dowels; Support arch 233, 236 logging 64, 68, 267
Calcite 57, 127 axial 87–97, 89–91, 93–7, 99–105, orientation 68–9
Campbell Mine, Canada 325 100–3, 109, 117–9, 118, 272–5, 273, specimen testing 87
Canada 109, 304, 308, 340, 342, 345, 391, 274 Corner frequency 306, 307, 311
434, 506, 563–5, 567 biaxial 99–101, 100, 104 Coulomb
Carbonate 113, 495 lateral 231 effective stress law 5, 104, 409
see also Dolomites; Limestones multiaxial 99–105 friction, deformation model 130, 335
Cataclastic flow 103 plane 108, 109 shear strength 96, 105–7, 125, 134–6, 136,
Cavability 46, 50, 51, 53, 77, 267, 369, 465, polyaxial 104 489, 492
469–71, 474 ring 333 law 122, 129, 222

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