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Spasid: A Computer Program for Predicting Ground Movement Due to Underground Mining; User Manual.

Authors
Kiusalaas-J; Albert-EK
Source
NTIS: PB/84-175074 :201 pages
Link
NIOSHTIC No.
10003444
Abstract
This report is a self-contained user manual for a computer program called spasid (subsidence prediction and system identification). The program has two primary functions: (1) precalculation of ground movements due to underground mining operations using the influence function method and (2) computation of influence function and site parameters from measured displacements. Spasid is written in Fortran and consists of four modules: (1) a preprocessor module that prepares and maintains surface and mine data bases, (2) a subsidence computation module that predicts movements of the surface, (3) a system identification module that is used to calculate the optimal influence function parameters, and (4) a postprocessor module for generating graphic displays of subsidence data. All of the modules may be run in either batch or interactive mode. The manual does not assume previous knowledge of the influenced function method or programing competence.
Publication Date
19830101
Document Type
CP; Final Contract Report;
Fiscal Year
1983
NTIS Accession No.
PB84-175074
NTIS Price
A11
Identifying No.
OFR 59-84
NIOSH Division
TCRC;
Source Name
NTIS: PB/84-175074
State
PA;
Performing Organization
Pennsylvania State University
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