基于3DMine的金属储量核算及富集分区研究
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摘要
为了解决某金矿矿体赋存环境和围岩软弱破碎等不利条件使矿石开采难度增大、成本增加等问题,首先利用3DMine程序构建金矿三维工程地质模型;然后,基于距离幂次反比理论,结合金矿西区29副地质勘探线剖面信息,对西区1#、2#、3#、4#、4A#、5#、6#、北矿脉、中间矿脉共9条矿脉进行了金属储量核算和富集分区;最后,根据实际操作能力,按品位值范围将矿体划分为4个富集分区(欠富集区、富集区、较富集区和极富集区);根据实际开采年限,按照品位t=7 g/t划分为2个富集分区(富集区和不富集区)。该研究可为后期矿山开发建设,布置相关开采巷道、溜井、运输平硐、通风井等设施提供决策依据。
The adverse conditions,such as occurrence of the targeted gold orebody,weak and fractured surrounding rock,have not only brought difficulty in the mining underground,but also increased the operation cost. In view of that,3 DMine software was firstly adopted to build a three-dimensional engineering geological model for the gold mine. Then,based on the theory of Distance Power Inverse Ratio method,metal reserves estimation and enrichment zone division were performed for 9 veins in the western zone of gold mine( including 1#、2#、3#、4#、4 A#、5#、6#veins,Northern vein and middle vein),in combination with sectional information about 29 auxiliary geological prospecting lines. Finally,the orebodies were divided into 4 different enrichment zones( low enrichment,enrichment,higher enrichment,extreme enrichment) in terms of the range of ore grade value in the practical operation. And according to the grade value of 7 g/t,the orebodies were divided into two zones( enrichment zone and non-enrichment zone) in terms of practical service life.This study can be of reference for decision-making in arrangement of relevant mining roadway,orepass,haulage adit,air shaft and other infrastructure facilities in the later-stage of mine development.
The adverse conditions,such as occurrence of the targeted gold orebody,weak and fractured surrounding rock,have not only brought difficulty in the mining underground,but also increased the operation cost. In view of that,3 DMine software was firstly adopted to build a three-dimensional engineering geological model for the gold mine. Then,based on the theory of Distance Power Inverse Ratio method,metal reserves estimation and enrichment zone division were performed for 9 veins in the western zone of gold mine( including 1#、2#、3#、4#、4 A#、5#、6#veins,Northern vein and middle vein),in combination with sectional information about 29 auxiliary geological prospecting lines. Finally,the orebodies were divided into 4 different enrichment zones( low enrichment,enrichment,higher enrichment,extreme enrichment) in terms of the range of ore grade value in the practical operation. And according to the grade value of 7 g/t,the orebodies were divided into two zones( enrichment zone and non-enrichment zone) in terms of practical service life.This study can be of reference for decision-making in arrangement of relevant mining roadway,orepass,haulage adit,air shaft and other infrastructure facilities in the later-stage of mine development.
引文
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[11]王明华,白云.三维地质建模研究现状与发展趋势[J].土工基础,2006,20(4):68-70.
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[14]于倩.基于3DMine的大苏计钼矿三维地质建模及储量计算研究[D].北京:中国地质大学地球科学与资源学院,2010.
[2]邵亚建,饶运章,何少博.基于3DMine软件的复杂矿体三维建模及储量估算[J].有色金属科学与工程,2016,7(4):98-102.
[3]郝全明,朱振龙,薛瑞雄,等.基于3DMine的矿山三维地质建模研究[J].煤炭技术,2016,35(5):112-114.
[4]荆永滨,孙光中.矿体块段模型品位估值快速搜索算法研究[J].矿冶工程,2016,36(4):8-10.
[5]叶海旺,王荣,韩亚民,等.基于3Dmine的鄂西高磷赤铁矿凉水井矿区三维建模[J].金属矿山,2011(1):89-92.
[6]厉美杰,岳霆,韦钊,等.基于3DMine软件的露天煤矿复杂条件下表土模型的建立与应用[J].煤炭技术,2016,35(12):73-75.
[7]郑文宝,黎枫佶,唐菊兴,等.基于Micromine软件下地质统计学在甲玛矽卡岩型铜多金属矿储量计算中的应用[J].地质与勘探,2011,47(4):726-735.
[8]黄华高.Modelvision软件在磁法勘探与激电中梯扫面中的几点研究应用[J].安徽地质,2015,25(2):135-136.
[9]赵晓东,李利岗,彭林军,等.GIS和GOCAD支持下的矿山3D地质建模[J].地理与地理信息科学,2009,25(2):34-38.
[10]周邓,姜勇彪.基于3DMine的邹家山铀矿床3#矿带三维模型构建[J].现代矿业,2016(5):106-110.
[11]王明华,白云.三维地质建模研究现状与发展趋势[J].土工基础,2006,20(4):68-70.
[12]Ross R Moore,Seott E Johnson.Three-dimensional Reconstruction and Modeling of Complexly olded Surfaces Using Mathematica[J].Computers&Geosciences,2001,27(4):401-418.
[13]柳波,陈广平.基于3DMine的贾家堡铁矿储量估算研究[J].现代矿业,2010(11):1-4.
[14]于倩.基于3DMine的大苏计钼矿三维地质建模及储量计算研究[D].北京:中国地质大学地球科学与资源学院,2010.