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中甸普朗铜矿床三维数字模型的建立及其应用
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摘要
矿床数字模型是以地质科学为基础的,以地质统计学为理论依据,主要强调的是矿床的资源信息,具体来说,就是以矿床中所含矿物的经济价值为重点,再根据矿山的具体情况,确定相应的经济参数,并以这些参数为基础,设计坑道等矿山设施,制定开采计划。实施数字矿山使矿业企业充分利用矿产资源,实现合理部署和有效利用的重要途径,是矿业企业发展的趋势。
     云南中甸普朗铜矿是近年来发现的规模达超大型的斑岩铜矿,铜金属量远景大于500万吨,它是中国目前已确定的最具特殊性的印支期斑岩铜矿床,建立其矿床数字模型同矿床的找矿与开发具有十分重要的意义,因此研究清楚普朗铜矿床结构和铜品位分布规律是很必要的,基于此,论文在导师的指导下选择以Surpac矿业软件为平台,建立云南中甸普朗铜矿床三维数字模型,并运用地质统计学、数学地质的理论、方法和现代计算机技术对普朗数字矿床进行了详细的研究分析:(1)建立了普朗矿区kt1、kt2矿体、地表、斑岩蚀变分带、物探(激电异常)等三维实体模型,同时对铜品位进行了详细的统计分析,拟合出了矿床的数学模型,结合数学模型深入地谈讨了矿体形态的空间变化特征及其地质意义;(2)实现了运用数学和图形的方法来总结矿体的矿化空间富集规律,在此基础上,进行了矿床深边部的成矿预测,推测在kt1号矿体东边(倾向方向)还存在矿体,在北边(矿体的走向方向)也有微弱矿化,经施工验证,在矿体的东边确买存在4条大脉状矿体;(3)通过数字矿床模型的建立,实现了矿体储量、品位计算的计算机化和矿体平、剖面图绘制的自动化,矿山企业可根据金属市场价格的变化,调整工业指标,动态多方案圈定矿体,选择最优矿体开采方案,还可用于辅助矿山进行阶段性资源评估、规划开采设计等工作。
Deposit Digital Model is based on the geological science-based.To the theoretical basis of geostatistics.The main Content is the information resources of deposits.Specifically,is contained in mineral deposits of economic value as the focus.Then according to the specific circumstances of the mine.Economic parameters to determine the corresponding.And based on these parameters.Designed Mine and other mine facilities.The development of mining plan.Implementation of digital mine so mining companies to fully utilize the mineral resources.Achieve a reasonable deployment and effective use of the important channels are the development trend of mining enterprises.
     PuLang Copper in recent years found that up to the size of the large porphyry copper deposit of Zhongdian, Yunnan.Copper metal is greater than the volume of five million tons Vision. It is currently China has identified the most special Indosinian porphyry copper deposit.Model set up with the digital of its deposit prospecting and development of mineral deposits of great significance. So the study PuLang copper deposit and copper grade distribution is necessary,Based on this.Thesis to choose Surpac mining software for the platform,Zhongdian in Yunnan plan to Design digital copper deposits of PuLang in ZhongDian,YunNan.And the use of geostatistics, mathematics geological theory, methods and modern computer technology and equipment for digital deposit PuLang in detail the research and analysis,The main outcome was as follows:(1)Designed a mining of PuLang kt1, kt2 ore body three-dimensional model of three-dimensional Terrain model, with porphyry alteration and geophysical model (Abnormal electrical) model. On the raw data to conduct inspections and sample analysis, to build the theoretical model of Variation for the deposit. And to do the geological explanation, to primary discuss the spatial change shapes of the. deposit and its influential factors and Geological significance.(2)By the digital deposit, to sum up the regularity of mineralization and enrichment of the deposit with the method of mathematics and graphs. On this basis Speculate on the east ore body No. KT1 (direction of dip) also exist Orebody.At the north (direction of strike) also has weak mineralization.By the construction of authentication.Orebodies at the eastern side of the existence of four major ore vein.(3)By the establishment the digital deposit model, to realize computerization of reserve and grade calculation of deposit, and automation of plotting plan and section of deposit. Mining enterprises in accordance with changes in metal market prices. To dynamic plan draw the deposit, doing contrast and choosing the optimum plan of the deposit exploitation. And also be used to auxiliary mining resources assessment to carry out stage assessment, planning and design work..
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