分期开采

露天矿分期开采的技术特征

Features of mining by stages in open-pits

露天矿分期开采综合优化设计方法

A comprehensive optimizing design method of multistage mining for Open-pit Mines

国内外金属露天矿的分期开采技术

Phased mining technology of metal open pits in China and abroad

露天矿分期开采截碴平台宽度的确定

Determination of rock retaining platform width in phased open pit mining

境界分析对大型矿山确定分期开采的分期境界也具有重要价值。

Pit-limit analysis is also a valuable procedure in determining the phase pit limits .

露天矿分期开采经济效果评估模型及其应用

Model for evaluation of economic effects of phased open pit mining and its application

露天矿分期开采若干问题的研究（上）

Study on some technical aspects of phased mining in open pits ( Part 1 )

在倾斜矿床露天矿长远规划模型的基础上，建立了分期开采境界优化模型。

Based on the " surface mine long term planing model " the stepwise mining limit optimization model has been set up for inclined ore bed .

针对某钼矿分期开采的实际情况以及矿体的厚大特征，选用中深孔凿岩、电耙出矿的分段凿岩阶段矿房法进行开采，有效地提高了矿块生产能力。

As a case study on slope improvement in a scrap mine , the design of medium-deep hole blasting parameter of network and safety proofreading are mainly presented , and the blasting results are analyzed .

阐述了国内外金属露天矿分期开采的典型事例。论述分期开采的原则、形成条件、分类方式和实施分期开采的方法。

Typical cases of open pits mined in phases ( stages ) at home and abroad were described , the criteria of phased mining , the stage-forming condition , the classification mode and the method for realization of phased mining were discussed in this paper .

怀北矿分期分区开采内部排土和副产矿石的处理

Internal dumping , mining by stages and by districts and treatment of by - product in Huaibei Limestone Mine

实行矿业权有偿获得制以前已经开采的矿山，也要普遍分期交纳尚未开采的矿产资源的采矿权价款。

Mines , which operated before the mining rights system took effect , should also pay mining rights of un-mined mineral resources by stages .