Prediction of the Intensive Surface Subsidences in Mining Potash Series

摘要

A procedure is developed for predicting surface subsidences based on the linear viscoelasticity theory. A four-parameter curve is accepted as a creep function to describe the process of movement. Proceeding from in situ data on surface subsidences, unified rheological indices are defined for all potassium strata of the Upper Kama deposit. The prediction method shows effect of filling on movement and makes it possible to model numerically and estimate the change in movement trough in time.