Evaluation and Research on Water Inrush from Working Face Floor near Fault
SONG Zhaoqian
GUO Wei
WANG Yuhe
Abstract：In order to make the water inrush coefficient method more accurate and effective in the evaluation of mine floor water burst, a mechanical model expressing the hanging inclined water-resisting key strata was established by taking into account the interaction between the mine floor and the fault under the influence of mining, solution was carried out for the deflection of the sheet model. Based on the combined calculation of the actual failure depth of the working face floor and the model of the hanging inclined water-resisting key strata, the most vulnerable water-inrush path of the working face floor near the fault was found. On this basis, the improved formula of the water-inrush coefficient method was proposed and then used in the evaluation of the working face floor water inrush of a mine. The results indicated that the water-burst coefficient which was calculated by the improved water-inrush coefficient method was 0. 046 MPa/m higher than that calculated by the traditional water-inrush coefficient method, finally, the working face floor was evaluated from the more dangerous water-inrush area into the danger water-inrush one.
Keywords：water inrush from mine floorimproved water inrush coefficient methodkey water-resisting layermost vulnerable inrush water path
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 20-22,27 )