国外某矿山采矿方法的选择

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中图分类号：TD853 文献标志码：B 文章编号：1004-4345（2025）06-0016-05

Abstract Theselectionof mining method iscentral to mining technology.This paper focuses onacopper-cobalt mine inAfrica， characterized by a thick，stratified ore deposit.The ore body liesata depth of 40o～50O m with a dip angleof 5∘～10∘ ，containing approximately 37.4 million tonnes of resources. The average grades are 1.17% Cu and 0.53% Co. The engineering geological conditionsaremoderate，whilethehydrogeologicalconditionsarecomplex.Theminedevelopmentsystememploysdualdecline + （204号 auxiliaryshaftdevelopmentmethod，targetingaproductionscaleof6kt/dFolowingpreliminaryselectionofminingmethods，the caving method was excluded，with the open stoping and cut - and -- fill methods identified as viable options.A comprehensive comparisonwasthenconductedbetweenthesetwoethodsbasedonsafetyservielife，esourcerecoveryrateandeconomicbeits. Theresultsindicatetatteuadfllmetoderssignificantadvantagesingrondpressureontrol，ductioofordiutiond loss，extensionofine life，andimprovementofnetpresentvalue（NPV）.Althoughthecut-and-fillmethodincursaighercostper tonneofore，idemonstratessuperioroveralleconomicandenvironmentalbenefits.Consequentlythecut-and-fillmningethodis ultimatelyrecommended.Corrspondingstopestructureparametersandlayout werealsodeterined，providingatchnicalbsisfor efficient and safe mining operations.

Keywordsmining method;cut-and-fillstoping;open stoping;copper-cobalt mine;occurrence conditionsoforebodies;economic benefit

在矿业领域，采矿方法的选择是决定矿山长期运营与可持续发展的关键因素，其影响通常贯穿矿山整个生命周期，服务年限可达数十年。（剩余5084字）