欢迎来到天天文库
浏览记录
ID:32006961
大小:15.45 MB
页数:77页
时间:2019-01-30
《司家营铁矿境界优化与地表约束的影响-分析》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、万方数据东北大学硕士学位论文AbstractBoundaryoptimizationoftheSijiayingironmineandtheinfluenceofthesurfaceconstraintsAbstractIntheprocessofopenpitmining,thedeterminationofultimateboundaryinproductionofthemineplaysaveryimportantposition.Theultimateboundaryisanimportantlinkinopenminingdesigna
2、ndanimportantbasisinopenmineproductiondecision.Whendeterminingtheultimateboundaryneedscomprehensiveconsideringvariousfactors,suchasminingresourcereservesandore-bodyoccurrencecondition,miningtechnicalcondition,themarketpriceoftheminerals,oreproductioncostandSOonavarietyofcompl
3、icatedfactorsinfluencingtheminingdesignscheme.Andthesefactorshavedirectimpactonmininginvestmentandproductionefficiency,SOthehi曲efficientandpracticaldesignmethods,optimizethefinalstateisminingenterprisesinevitablechoice.Thisthesispresentsamethodforultimateboundaryoptimization-
4、"movingconeelimination”.Thisalgorithmforopen-pitmetalminebasedonablockmodeloforegradeandstripratio.Inthismethod,alargestpossiblepitisfirstgeneratedand,then,startingfromthispitaniteratingconescanningprocessisusedtoeliminatethenon—profitconesorconeswithstripratiosgreaterthanthe
5、break—evenstripratio.Theoptimumpitisobtainedwhennosuchconescanbefoundinaroundofscanning,Intheprocessofexclusion,mustensurethatnoviolationslopeangleofgeometricconstraint,namely,aftereachpartofarealmruledoutfromresiduallevelofhelpslopeangleisnotgreaterthanthegivenfinalslopeangl
6、e.Thealgorithmcaneasilyhandledifferentdirectionandareahasdifferentslopeangle,throughcombineconicalshellvertexinplacedinthecenterofthelowestlevelofeachgradeoforeblockmodelmodule,CanbeRerhandletheconeoverlapoftheadverseimpactoftheoptimizationresults.Basedonthisoptimizationmetho
7、d,thisthesisdefinesthelargestgeometricboundarydelineating,methodofthestructureofthecone,movingconeeliminationideaandalgorithm.ThisthesistakesSijiayingironmineasanexample,usingthemovingconeeliminationandrelevanttheoreticalknowledgewhichresearchanddevelopmentbyProfessorWangQing
8、..V.万方数据东北大学硕士学位论文AbstractWhenstartaultimateBoundaryoptimization,wen
此文档下载收益归作者所有