Determine the reasonable haulage roadway position of successive panel based on the split⁃level mining method
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Graphical Abstract
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Abstract
Thispaperstudymainlyonthereasonablehaulageroadwaypositionofsuccessivepanelbe⁃ tweentwoadjointpanels*Relyingonaminefortheprojectbackground,bythetheoreticalanalysis, threezonesintheverticaldirectionofthesolidcoalsideweregiven:Solidcoalstresszonealongone sideofthegoaf,transitionalzoneandelasticzonealongthefloor*Accordingtotheprincipleofroadway layout,theroadwayshouldbearrangedverticallyintheelasticzonealongthefloorandhorizontallyin thelow⁃stressregionofthelimitequilibriumzone*Thereasonablestaggeredhorizontaldistancebetween adjacentroadwaysforthisprojectbackgroundwasfoundtobe2mbytheoreticalanalysisandFLAC3D numericalsimulation*Intheengineeringapplication,combinedsupportwasappliedonthehaulageroad⁃ way,andthedeformationofthesurroundingrockintheroof,floorandsidesofthehaulageroadwaywas effectivelycontrolledaccordingtotheactualfieldtest*
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