Mine Geometry-Based Prediction of Tectonic Faults in Coal Seam in Extraction Panel
S. V. Shaklein1, T. B. Rogova2
1Institute of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia
2Gorbachev Kuzbass State Technical University, Kemerovo, Russia
Keywords: Disjunction, coal seam, prediction, extraction panel
Abstract
The article describes a new method proposed for the mine geometry-based prediction of location and vertical amplitude of faults within the boundaries of an extraction panel using the data on survey network coordinates. A survey network is split into cells-convex quadrilaterals with their vertexes representing the survey grid points. For each quadrilateral, the geometric uncertainties of the coal seam hypsometry are estimated as closure errors and are eliminated in the course of the survey grid adjustment by means of correction of heights. The method consists in calculation and analysis of corrections for the measured absolute heights of the coal seam points arranged in mine roadways, the introduction of which eliminates the interpretation uncertainty of geological data. The corrections are only assumed to be the weights of the measurement and interpolation errors in the neighborhood of specific measurement points. A fault is predicted when there is a jump between the values of the correction for the neighbor measurement points.
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