条带充填绿色开采回收压覆煤炭资源支巷宽度研究

doi:10.11799/ce202409003

Abstract

Abstract:

Taking the strip filling working face of No.3 coal seam in Shanxi Sanyuan Coal Industry as the engineering background, firstly, based on the clamped beam theory model, the deformation and stress characteristics of the branch roadway roof in strip filling mining are analyzed. Secondly, the numerical simulation method is used to reveal the interaction between the branch roadways and the distribution characteristics of the plastic zone of the branch roadways. Based on the theoretical analysis results and the actual conditions of the filling working face of Sanyuan Coal Industry, the reasonable width of the branch roadway for multi-round cyclic interval strip filling mining is determined to be 5m. Finally, the rationality of the width of the branch roadway is verified by engineering practice, the safe mining of the overlying coal resources is realized, and the green and sustainable mining of Sanyuan Coal Industry is promoted.

CLC Number:

TD823

References

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Study on width of strip branch roadway for recovering overlapping coal by strip filling green mining method

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