Research on the Support Technology of the Roadway of Soft Rock Back Mining in Deep Coal Mines
Taking the deep soft-rock mining roadway of a coal mine as a case study,an orthogonal test method is used to introduce a roadway support scheme.After obtaining the best support technology scheme for the soft rock roadway in deep well based on the orthogonal test method,the vertical stress distribution,displacement distribution and plastic zone distribution of the roadway in different periods are examined from two perspectives of the roadway digging period and the roadway mining period through numerical simulation.After initially verifying the feasibility of the support technology scheme through numerical simulation,the support technology scheme is applied in engineering practice to further confirm the feasibility of this support technology scheme.
soft rock in deep wellsmining roadwayroadway support technologynumerical simulationorthogonal test method
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