CAJ | 학술논문

为了提高资源储量估算的准确性，分析矿石体重取值方法对资源储量估算的影响，提出了一种基于插值方式的矿石体重赋值方法。首先基于某铁铜矿的勘探数据和勘探线剖面图，经过图形格式转换和坐标变换，构建了部分矿体的三维地质模型及地质数据库；其次进行矿石样品组合，采用距离幂次反比法推估矿体品位；然后依据矿石样品体重与品位的测试值，建立了矿石体重与品位的线性、二次、三次及对数回归模型，经过分析比较，确定二次回归模型为矿石体重插值模型；最后在矿体三维地质模型内对矿石体重进行插值并估算储量，分析储量估算结果并与传统矿石体重取值方法估算的资源储量进行比较。结果表明：上述2种方法估算的资源储量相差较小，采用基于插值方式估算的矿石平均品位稍高于传统方法，对于提高资源储量的估算精度具有一定的参考价值。
위료제고자원저량고산적준학성，분석광석체중취치방법대자원저량고산적영향，제출료일충기우삽치방식적광석체중부치방법。수선기우모철동광적감탐수거화감탐선부면도，경과도형격식전환화좌표변환，구건료부분광체적삼유지질모형급지질수거고；기차진행광석양품조합，채용거리멱차반비법추고광체품위；연후의거광석양품체중여품위적측시치，건립료광석체중여품위적선성、이차、삼차급대수회귀모형，경과분석비교，학정이차회귀모형위광석체중삽치모형；최후재광체삼유지질모형내대광석체중진행삽치병고산저량，분석저량고산결과병여전통광석체중취치방법고산적자원저량진행비교。결과표명：상술2충방법고산적자원저량상차교소，채용기우삽치방식고산적광석평균품위초고우전통방법，대우제고자원저량적고산정도구유일정적삼고개치。
In order to enhance the accuracy of reserves estimation,analyze the influence of the determination method vol-umetric weight of ore on reserves estimation, a new determination method of volumetric weight of ore based on interpolation method is proposed. Firstly, based on the prospecting data and prospecting line profile maps of an iron & copper mine, by graphics format conversion and coordinate transformation,the three dimensional geological model of part of the orebody of the i-ron &copper and the geological database are established;secondly,the ore samples are grouped,and the distance power inverse ratio method is adopted to estimate the grade of orebody;thirdly,based on the test values of orebody samples weight and grade, the linear regression model,quadratic regression model,cubic regression model and logistic regression model interpolation mod-el of volumetric weight of ore and grade are established. Through analysis and comparison,the quadratic regression model is i-dentified as the volumetric weight of ore;finally,the interpolation of volumetric weight of ore is conducted within the three di-mensional geological model of orebody,and the reserves are estimated. The reserves estimation results are analyzed,and com-parison between the reserves estimation results and the traditional determination method of volumetric weight of ore is conduc-ted. The results show that the difference of the above methods is less,and the average grade of ores estimated by the new meth-od based on interpolation method is slightly higher than the traditional method. Therefore,the method proposed in this paper can provide some reference for enhancing the accuracy of reserves estimation.