Optimization of mining sequence in the fault-subsiding area of Heidaigou open-pit mine

Theminingsequenceaffectsthesafeandefficientproductionofminesandthedevelopment andeconomicbenefitsofminingenterprises.Inordertosolvetheproblemofminingsequenceduring thefault-subsidingareaofHeidaigouopen-pitmine,threeminingmethodsareproposedbasedonthe coalandrockoccurrenceconditions,mineproductionstatusandequipmenttypes.Theevaluationindicatorsrelatedtotheprogramfromtheaspectsofeconomy,technologyandsafetyandusedthethree-dimensionalmodelingandsimulatedminingtechnology,qualitativeandquantitativecombinationtodeterminethevaluesofeachparameter.Finally,TheAHP-idealpointmethodwasusedtoestablishacomprehensiveevaluationindexsystemmodeltodeterminetheoptimalminingplan.