Page 643 - Rock Mechanics For Underground Mining

INDEX

Stability 5, 9, 13, 92, 107, 109, 110, 243, 271, footwall 60, 203, 300, 363, 390, 391, 427, spherical opening 285–9
293–9 436, 453, 506, 558–60, 563–5 defined 31
criterion 295, 296, 397 hangingwall, failure 50 deviator 33
excavation boundary 265 height/width ratio 420, 421 dynamic 425, 536
jointed rock 5, 78, 81, 85, 229, 242, incremental extension 300 energy
263–5, 409, 421, 423 longwall 301, 364, 431, 434 changes 272
index 297, 298, 299 ore recovery from 6, 13, 53, 65, 67, 357, and mining method 272
mine 271, 293, 294, 296, 299, 392 367, 459, 479 static 275, 276, 286, 300
roof bed 84, 241, 261 performance data 16 gauges 101, 150, 151, 156, 227, 451, 546,
Stage testing 121 potential hazards 559 548, 551, 554, 555
Stand up times 77, 80 pre-production development 352, 356, 360, geomechanics convention 17, 39, 41, 42,
Starfield and Pugliese procedure 522 361 43, 282
Static equilibrium 25, 26, 28, 29, 34, 38,, 41, reinforcement 427, 428, 436, 439, 440 horizontal surface 249
104, 158, 256–8, 274, 375, 377 shape 16, 265 increment 116, 194
criterion 158 sidewall, stress 175, 211, 420 localisation 96
equations 21, 38, 169, 175, 235, 282 span 267, 297, 300, 359, 384–6, 388, 392, matrix 32, 33, 38
Steel 404, 406, 423, 436, 494 normal 31, 33, 39, 40, 150, 156, 171, 281,
arches 313, 346 strain analysis 40, 404, 419 544
cables 337 walls 266–70, 353, 354, 356–7, 361, 364, components 31, 33, 39, 150, 171
sets 313–5, 317, 320, 338, 346, 478, 544, 401, 408, 420, 423–6, 428–9 displacements components 30, 31, 32,
577 Stope-and-pillar mining 13, 296, 371, 377, 38–40, 110, 175, 183, 261
blocking 313, 320, 577 384, 386, 394–7, 400–3, 405, 427 measurements 15, 554
supports 346 design/layout 296, 384, 386, 394–7, 400–3, plane 44, 110, 166–9, 171, 198, 230, 231,
Stereographic projections 71–6, 72, 73, 77, 405, 427 233, 314, 315, 404, 405, 419, 512
83, 245, 246, 247, 250, 568–74 irregular orebodies 396, 405 plastic 115, 116
lower hemisphere 72, 157, 245, 246 Mount Charlotte 403–5, 404 principal 33
see also Hemispherical projection stress analysis 384, 396, 398, 432, 444 radial 88, 95
Stereonets 72–4, 156, 158, 571 layouts 296, 384, 394, 396, 397, 401, 402 shear 31, 33, 39, 45, 281, 373
Sterling’s tests 227–9 sequence 400–3, 402 tensile, horizontal 515
Sticks 434 Stoping transformation 33
Stiffness 35, 49, 137, 257, 294–7, 298, 302, bench-and-fill see Bench-and-fill transient 281, 522
315–7, 320–1, 335–6, 406, 434, breast 558 vector 34, 186
553–4, 564, 577–9 cut-and-fill see Cut-and-fill volumetric 33, 36, 39, 89, 96, 102, 103,
axial 335 and drillability 353 145, 284
effective 295 geometry 362, 386, 387, 389, 408 Strain-displacement relation 40, 186, 281–2
elastic/post-peak ratio 37 layout 297, 348, 462 Strain hardening 86, 115, 117
global matrix 188, 189, 295, 296 one-pass 12 Strain-softening 86, 92, 94, 127, 193, 195, 294
machine 92, 93 open see Open stoping Strata control 313, 440, 441
matrix 188, 189, 196, 295, 296 operations 348, 353, 361, 409, 416 Stratiform deposits see Orebodies
mine local 296, 297 backfill design 409, 416–8 Strength
normal 120, 129–31, 133, 191, 328 transport facilities 353 anisotropic material 117–9, 118
pillar 296, 297, 406, 407 overhand 419, 422 compressive 78, 81, 87–92, 96, 97, 99–101,
shear 133, 137, 141, 191, 257, 328, 330 primary phase 424–5 106, 111, 113, 127, 129, 131, 135,
tendon 335 rock mass response 17, 165, 166, 224–6, 139, 140, 198, 214, 221, 234, 240,
unloading 335 349, 352, 355, 396, 399, 403, 405, 543 267, 332, 383, 384, 395, 398, 408,
Stope sequence 400–3, 402 412, 413, 415, 421
access 197, 342, 347, 348, 398, 426 shrink 365, 360–2, 423 measuring 157, 416
convergence 300–1, 402, 435–6, 447–8, and stress distribution 199–221, 267, 271, test procedure 3, 88, 92
510–1 277, 397–8, 401, 419–21, 420, 442–4 uniaxial 214, 215, 336
crown 265, 358, 361, 420, 421, 422, 559 sublevel open 356, 357, 426 criteria 81, 87, 105, 107, 111, 113, 117,
fractures 420–2, 421 underhand 419, 421 132, 134–7, 140, 141, 197, 198, 221,
reinforcement 422 vertical crater retreat (VCR) 361, 362 322, 323, 381, 386, 463, 489, 490,
stress 175, 178, 420, 421 Strain 493, 513
cut-and-fill see Cut-and-fill analysis 40, 404, 419 peak 105, 107, 135, 136, 140
defined 347 axial 34, 88, 89, 92, 94, 95, 102–4, 103, 237 residual 105
design 13, 16, 58, 266, 348, 429, 470 borehole wall 150–1 index 68, 81, 82, 98, 322
development 69, 70, 347, 348, 360, 373, burst 431 peak 86, 87, 89, 91–4, 96, 97, 100, 102–5,
398 cells 148, 149, 151, 153, 163, 554 107, 109, 112, 113, 117, 118–22, 125,
see also Service openings compatibility equation 34, 37, 39, 40, 45, 129, 134, 135, 136, 139, 140, 317,
drawpoints 13, 518 167, 168, 173, 238 373, 398, 417, 426
extraction sequence 9, 165, 301, 396, 397, components 28, 31, 33–5, 39, 40, 45, 94, envelope 100, 105, 107, 109, 112, 113,
400–2, 403, 405, 417, 426, 429 150, 168, 171, 175, 184, 186, 281, 121, 129, 135, 136, 139
filling 6, 417, 423 288, 522 pillar 373, 378–85, 392, 394–5

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