GGSD Program Details for SDPS

SDPS

Category	Settlement analysis
Publisher	Virginia Tech (Mining)
Platform	Win95/98, WinNT, Win2000
Status	Commercial
Description	SDPS (Surface Deformation Prediction System) provides an integrated approach to the calculation and prediction of ground deformations above undermined areas. Based on empirical or site-specific regional parameters, it can calculate a variety of ground deformation indices according to the profile function method as well as the influence function method. Results can be plotted using the graphing program provided, or exported to other graphing programs. Calculation of pillar safety factors for room-and-pillar operations using traditional pillar stability equations, as well as calculation of pillar stability factors using the Analysis of Longwall Pillar Stability (ALPS) and Analysis of Retreat Mining Pillar Stability (ARMPS) programs developed by the U.S. Bureau of Mines (now NIOSH). ALPS and ARMPS are included. In order to calculate surface deformations above an undermined area, three distinct entities must be established: Location and geometry of the mined area (mine plan), Location of the surface points where deformations will be calculated (prediction points), Appropriate subsidence parameters developed from field observations. The profile function method of ground deformation prediction requires minimum input, i.e. panel width, overburden depth, seam thickness, and percent hardrock in the overburden. The location of the prediction points is automatically established on the transverse axis of the panel, extending from the point of maximum subsidence (i.e. the panel center line) to the zero subsidence limit. The empirical parameters required are already built into the profile function equation. For the influence function method input requirements are: The mine plan, describing the layout of the excavation, The location of the prediction points, Empirical parameters pertaining to each case study. The average parameters established for eastern U.S. coalfields may be used if site-specific parameters are not available.
Data formats supported	None stated
Supplier in United States of America	Carlson Software Inc