基于CMS精密探测的采场贫化损失计算方法

采矿损失率和矿石贫化率是表征矿山企业采矿技术和管理水平的重要指标。针对传统贫化损失测定方法工作量大，操作困难及测定数据不准确的实际问题，提出了一种新型的基于CMS精密探测的采场贫化损失的计算方法。介绍了CMS的工作原理及其对采空区的探测过程，阐明了基于CMS精密探测的采场贫化与损失计算的具体方法。以冬瓜山铜矿采场空区精密探测为实例，运用矿山三维设计软件Surpac，创建采空区、采场设计单元及底部结构等三维模型，并通过模型间的布尔运算，准确获得了探测采空区的实际边界和体积，以及实际采矿过程中的超挖量、欠挖量及采场空区内的存留矿量，从而较为准确地计算出采场的贫化率和损失率。

Calculation Method for Mining Loss and Ore Dilution Based on CMS Precision Survey

Mining loss rate and ore dilution rate are important indexes characterizing the mining technology and management level of a mining enterprise. In view of the practical problems of large amount of work, difficult operation and inaccurate measured data in the conventional dilution and loss measurement, a new calculation method for mining dilution and loss based on CMS precision survey is proposed. The working principle of CMS and its survey process for the cavity are described and the concrete method of calculating the mining dilution and loss based on CMS survey is elucidated. With the precision survey of the cavity in Dongguashan Copper Mine as the real case, Surpac software for 3 D design of mine was used to create the 3D models for the cavity, the design unit of stope and its bottom structure. Through the Boolean operation be- tween the models, the accurate data of the real boundary and volume of the mined-out area, and the over-excavated amount, under-excavated amount and the remaining reserve in the cavity were obtained so that the mining dilution rate and loss rate were calculated accurately.