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1、第3O卷第5期礦冶工程Vo1.30№52010年10月MININGANDMETALLURGICALENGEERG0ctober20lO采礦方案優(yōu)選的熵模糊物元決策模型①杜坤,李夕兵,一,周健,趙曉昕,(1.中南大學(xué)資源與安全212程學(xué)院,湖南長沙410083;2.深部金屬礦產(chǎn)開發(fā)與災(zāi)害控制湖南省重點(diǎn)實(shí)驗(yàn)室,湖南長沙410083)摘要:針對采礦方案優(yōu)選決策多屬性、確定性與不確定性共存的特點(diǎn),從安全、經(jīng)濟(jì)和技術(shù)3個(gè)角度出發(fā),綜合考慮影響采礦方案的動(dòng)態(tài)、靜態(tài)、定量、非定量指標(biāo),選取生產(chǎn)能力、掌子面工效、損失率、貧化率、采切比、采礦成本、回采安全程度和施工難易程度8個(gè)指標(biāo),建立了基于熵權(quán)的采礦方案優(yōu)
2、選的模糊物元評價(jià)模型。在評價(jià)過程中,引用信息熵所反映數(shù)據(jù)本身的效用值來計(jì)算指標(biāo)的熵權(quán)和層次分析法求得的專家權(quán)重來求得綜合權(quán)重,用方案的各項(xiàng)評價(jià)指標(biāo)及其相應(yīng)的模糊量值構(gòu)造復(fù)合模糊物元,通過計(jì)算與標(biāo)準(zhǔn)模糊物元之間的歐式貼近度來實(shí)現(xiàn)方案的排序與擇優(yōu),并以黃沙坪鉛鋅礦為例證明了該方法應(yīng)用于采礦方案優(yōu)選的有效性和可行性。研究表明該模型有效地避免了權(quán)重分配困難的問題,通過評價(jià)樣本與評價(jià)標(biāo)準(zhǔn)之間的遠(yuǎn)近關(guān)系,得出黃沙坪鉛鋅礦3種采礦方案的歐式貼近度分別為82.1%,80.4%和68.9%,從而選取方案一。該決策模型為采礦方案綜合評價(jià)提供了一種新思路。關(guān)鍵詞:采礦工程;方案優(yōu)選;歐式貼近度(EAD);模糊物元
3、;熵;層次分析法中圖分類號:TD853.34+3文獻(xiàn)標(biāo)識碼:A文章編號:0253—6099(2010)05—0012—06ApplicationofFuzzyMatter—elementModelBasedonCoefficientsofEntropyinOptimizationofMiningSchemeDUKun,LIXi—bing,ZHOUJian,ZHAOXiao—xin,(1.SchoolofResourcesandSafetyEngineering,CentralSouthUniversity,Changsha410083,Hunan,China;2.HunanKeyLabora
4、toryofResourcesExploitationandHazardControlforDeepMetalMines,Changsha410083,Hunan,China)Abstract:Inviewoffeaturesofmulti—attribution,certaintiesanduncertaintiescoexistedintheoptimizationofminingscheme,afuzzymatter-elementmodelforoptimizationofminingschemewasestablishedbasedonentropyweightintermsofs
5、afety,economyandtechnology.Thedynamic,static,quantitativeandnon—quantitativefactorsinfluencingminingschemeweretakenintoaccount,and8indexeswereselectedincludingproductivity,workingfaceefficiency,lossratio,dilutionratio,strippingratio,miningcosts,stopingsafetyandoperatingdifficulties.Duringthisproces
6、s,thesyntheticevaluationcriterionweightwasdeterminedbycombiningtheentropyweightandthedecision—makerSsubjectiveevaluationcriterionweight.TheoptimalminingschemewasdeterminedbycalculatingEuclidapproachdegree(EAD)betweenthecompoundfuzzymatter-elementandthestandardfuzzymatter·element.ThepracticeinHuangs
7、hapingLead—zincMineshowsthisnewprocedureiseffectiveandfeasibleforselectingalternativesofminingscheme,whichcaneffec-tivelysolvethedificultyinweightallocationandmaketheweightallocationmorereasonable.TheEuclid