(武漢工業(yè)大學資源與環(huán)境工程學院，武漢430070)
摘 要: 凈利法是至今仍廣泛使用的一種礦床模型塊段權(quán)重的計算方法，適用于礦床單一露采的情況。對于礦床采用露天與地下聯(lián)合開采的情況及露天礦優(yōu)化設計的各種經(jīng)濟目標，依據(jù)經(jīng)濟合理剝采比的計算原理可以提出凈利差額法、收支比率法和費用差額法3種新的塊段權(quán)重計算方法及其參數(shù)分析算法。三者中的前兩者是凈利法的推廣。基于上述塊段權(quán)重計算技術(shù)可以建立露天礦設計的統(tǒng)一模型這個統(tǒng)一模型可以用來描述露天礦最終境界、分期境界和初始境界的優(yōu)化設計。
關(guān)鍵字: 塊段權(quán)重；礦床模型；計算方法；參數(shù)化法；露天礦；優(yōu)化設計
（School of Resource and Environment Engineering, Wuhan University of Technology, Wuhan 430070, P.R.China）
Abstract:The net-value method is a calculation method for the weights of the blocks within an ore body model, which is widely used even today and applied to the case of mining an ore body only by the open-pit method. For the case of mining an ore body by the method combined open-pit and underground mining and for the various economic objects of the optimum design of the open pit mines, three new calculation methods of the block weights referred to as the net-value difference method, the value-cost ratio method and the costs difference method, and their parametrizations were proposed on the calculation principles of the economic stripping ratio. Among of them the first two methods are the extension of the net-value method. An unified model for the design of the open pit mines was developed on the basis of the calculation technique for the weights of the blocks. The unified model can be applied to describe the optimum designs for the final limit, the intermediate limits and the original limit of a pit.
Key words: block weight; orebody models; calculation; parametrization; open pit mines; optimum design
