Detection Analysis on Floor Failure Rule in Mining of Group B Coal Seams in Xieqiao Mine
FU Maoru
ZHANG Aihua
ZHANG Pingsong
WU Rongxin
Abstract：The depth and characteristics of deformation failure of working face floor rock caused by coal mining are the important basis for mine water prevention and control. In this paper, the mining conditions of No. 6 coal seam of Group B of Huainan Xieqiao Mine were taken as the research object, the borehole resistivity test system and roadway test system were arranged in the air-return roadway floor of the working face to construct a spatial test system, real-time monitoring was carried out according the mining progress, and through the comparison of the resistivity values of rock strata, the depth and characteristics of deformation failure of working face floor rock in the process of coal mining were obtained. The results showed that the mining failure depth of the working surface of No. 6 Seam was 13. 5 m, which can provide reference for determining the floor conditions of other working faces of Group B Seams.
Keywords：floor failure depthborehole resistivity test systemcombined test by boreholes and roadwaysresistivitycomparative analysis
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 69-72 )