硬岩型铀矿床坑口堆浸地质经济评价模型

通过对硬岩型铀矿坑口堆浸法的工艺流程分析，总结出坑口堆浸成本由矿石开采费用、主要原材料费用等14项要素组成，并建立了地质经济评价模型。运用该经济模型编写的坑口堆浸地质经济评价程序，对资源铀矿田和鹿井铀矿田的部分铀矿床进行了坑口堆浸地质经济评价。静态评价结果表明，在坑口堆浸总成本中，矿石开采费用占了相当份额，其次是土建工程及设备设施摊销费用、原材料费用。利用该经济评价模型开发的计算机软件，可以进行辅助决策，帮助决策人员科学地确定某一开发成本下坑口堆浸的矿石平均品位。

Geological-economic evaluation model for pithead heap-leaching uranium deposits of hard-rock

By analyzing the technical flow of pithead heap-leaching uranium deposits of hard-rock type, the authors analyze its 14 cost items such as ore mining fee and major materials fee etc. , and set up a geological-economic evaluation model. Under this geological-evaluation model a computer evaluating program is made in Ziyuan and Lujing uranium ore-fields. The results of static evaluation show that ore mining fee is the main part and amortization of both building and equipment and major materials fee are the secondary parts in the total cost of pithead heap-leaching mining. The computer program may assist decision-making in the way of helping decision makers to select scientificaly the average grade of ore in pithead heap-leaching mining under a total cost.