Analysis on phenomenon and regularity of additional horizontal movement in working face 1414(1)Guqiao coal mine
CHEN Yuanfei
WANG Lei
Abstract：Based on the measured data of surface horizontal movement in working face 1414(1)of Guqiao coal mine in Huainan,this study combined FLAC3D numerical simulation software to analyze the impact of stage mining on surface horizontal movement through simulated mining processes.The study reveals that the horizon-tal movement of surface points along the strike direction is directly proportional to the inclined deformation,but the horizontal movement along the dip direction is noticeably disproportionate to the inclined deformation,espe-cially in the middle area of the mined zone where additional horizontal movement occurs.The horizontal move-ment along the dip direction is obtained by combining the inclined deformation and the additional horizontal movement.The additional horizontal movement is generated by the stage-wise mining process along the strike direction,always occurring in the direction of working face advancement,and exhibiting an overall approximate trapezoidal distribution pattern.The research findings have significant implications for studying and predicting the horizontal movement patterns of subsidence areas.
Keywords：numerical simulationhorizontal movementinclined deformationstage mining
Publication Date：2024-04-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 35-43 )