A Subsidence Prediction Model for Longwall Mine Design.
Jeran-PW; Adamek-V; Trevits-MA
Proc of SME-AIME Annu Fall Mtg St Louis Missouri,9/7-10/86 PP 3-8 :3-8
It has been found that lithological conditions over the Pittsburgh coalbed cause the subsidence coefficient to vary within the area of the subsidence trough. This precludes the use of European-developed predictive models, which are based upon a constant subsidence coefficient. Regression analysis of the distribution of subsidence coefficients from 11 Bureau of Mines, U.S. Department of the Interior, longwall panel studies on the location relative to the edge of the panel has yielded a third degree polynomial equation. This equation has been incorporated into a basic computer program for use on a personal computer that allows users with no previous knowledge of the theory of subsidence to predict vertical movements over typical longwall panels in the Northern Appalachian Coal Basin.
Proc. of SME-AIME Annu. Fall Mtg., St. Louis, Mo, 9/7-10/86, PP. 3-8