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Application of two parameter groups of the Knothe–Budryk theory in subsidence prediction

Polanin P.

Journal of Sustainable Mining

2015

Vol. 14, iss. 2

67--75

The research includes geodetic measurements carried out along eight observation lines located in the area of Upper Silesian Coal Basin in order to determine the possible usage of the bimodal method in subsidence prediction. The article contains information about principles of the proposed method, description of observation material and applied software and comparison of calculations results of deformation indicators by the bimodal method (including three parameters: a, tgβ1 and tgβ2) and the classic one (including two parameters: a and tgβ). The article includes initial results in terms of parameters' values determination of the bimodal method on the basis of mining and geological conditions, and it presents an accuracy evaluation of the proposed method.