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Surface Deformation Prediction System 4.Op 04-11-1995 <br />Profile Function Method (Hyperbolic Tangent) 15:10:26 <br />File Name --> D:\SDPS\AM-RP.PRF <br />Case Description <br />Allen Mine, room end pi]]er, 90% eatrection (water effect) <br />Woodward-Clyde Parameters <br />Input Data <br />Mining system ............................. Room-aad-Pillar <br />Panel width ....................................... 450.0 (ft) <br />Overburden depth .................................. 641.0 (ft) <br />- Extraction thickness .............................. 6.00 (ft) <br />Percent herdrock .................................. 25.0 (%) <br />- Extraction ratio .................................. 90.0 (%) <br />Estimate of inflection point (LP.) .......... Conservative <br />~_ Calcu]ated Parameters <br />Panel geometry ................................ Subcritical <br />Mammum subsidence (Smax) ......................... -2.98 (ft) <br />_ Maximum subsidence factor (Smax/m) ................ 0.496 <br />Offset of inflection point from rib (inby) ........ 73.6 (ft) <br />Distance of point of Smex from I.P . ............... 151.4 (ft) <br />• Subsidence Distribution <br />Distance ; Distance ; Distance <br />from Panel Subsidence, from Panel Subsidence; from Panel Subsidence <br />Center ; Center ; Center <br />(ft) (ft) ; (ft) (ft) ; (ft) (fU <br />0 -2.98 ; 238 -0 <br />53 ; 476 -0.01 <br />14 -2.93 ' 252 . <br />-0 <br />42 ; 490 -0.O1 <br />28 -2.66 ~ 266 . <br />-0.34 ; 504 -0.00 <br />42 -2.79 ; 280 -0.27 ; 518 -0.00 <br />56 -2.69 ' 294 -0.21 ' 532 -0.00 <br />70 -2.58 ~ 308 -0.17 ; 546 -0.00 <br />84 -2.45 ; 322 -0.13 ; 560 -0.00 <br />98 -2.30 ; 336 -0.10 ; 574 -0.00 <br />112 -2.13 ; 350 -0.08 ; 588 -0.00 <br />126 -1.94 ; 364 -0.06 ; 602 -0.00 <br />140 -1.74 ; 378 -0 <br />OS ; 616 -0.00 <br />154 -1.54 ; 392 . <br />-0.04 ; 630 -0.00 <br />168 -1.34 ; 406 -0.03 ; 644 -0.00 <br />182 -1.14 ' 420 -0.02 ' 658 -0.00 <br />196 -0.96 ~ 434 -0.02 ~ 672 -0.00 <br />210 -0.80 ; 448 -0.O1 ; 686 -0.00 <br />22.4 -0.65 462 -0.01 700 -0.00 <br />FIGURE AM-1 ALLEN MINE <br />SURFACE DEFORMATION PREDICTION SYSTEM (SDPS) <br />WOODWARD-CLYDE PARAMETERS <br />TRANSVERSE DEFORMATION, ROOM AND PILLAR, PROFILE FUNCTION METHOD <br />WEST-EAST ORIENTATION. SEE ALSO FIGURE AM-6 <br />