The most common approach to extracting metal-bearing ore from a porphyry copper deposit is by open-pit mining, although such mines also typically include some underground activities.
从斑岩含铜矿床开采含金属的矿石，最主要的方式是露天开采，尽管这种矿床常会伴随一些地下的地质活动。
Greenhouse gas emissions of tar sands crude are 40% higher than conventional oil, and the open-pit mining has devastated Alberta's boreal forest.
焦油砂的温室气体排放量比普通石油高40%，露天采矿已经极大地破坏了阿尔伯塔的北方气候带森林。
Mining operations at the existing open pit are due to cease by theend of 2012, although ERA is processing a proposal to develop the undergroundRanger 3 Deeps exploration area.
尽管ERA正在处理一份开发Ranger3Deeps地下勘探区的提议，但现有露天矿的开采作业将于2012年底到期。
Open-pit mining follows the same sequence of oprations as underground mining: drilling, blasting, and loading and removing waste and ore.
露天采矿遵循与地下采矿相同的作业顺序：钻孔、爆破、装载并运走废料和矿石。
Open-pit mining follows the same sequence of operations as underground mining: drilling, blasting, and loading and removing waste and ore.
露天采矿遵循与地下采矿相同的作业顺序：钻孔、爆破、装载并运走废料和矿石。
Research on the safety and stability of slope in open-pit mining is very significant to safety production of open mines.
研究露天开采边坡的安全稳定对露天矿山的安全生产具有重要意义。
In the course of mining, there are many mines with combined underground and open pit.
在各类矿产资源的开采过程中，有许多矿区属于地下与露天复合开采情况。
Controlled slope wall blasting plays key role in open pit mining.
边坡控制爆破在露天矿山起着至关重要的作用。
The combined oPen pit and underground mining system has found wide application in depeit mining.
矿床开采中露天与地下的联合开采法得到了广泛的应用。
Traditional open-pit mining boundary features fixed slope with benches and planar bottom.
传统的露天矿开采境界为固定帮有台阶、露天底平面型。
According to the dust pollution of open pit mine, the measures of preventing the dust pollution were raised in order to clean environment in mining area.
通过分析露天矿采场粉尘的污染情况，提出了粉尘污染治理的措施，达到了清洁矿区环境的目的。
With, the intensification of open pit mining expansion of high road, railway, industrial and civil constructions, a lot of problems on slope sliding have been left.
随着露天开采规模和深度的增加、公路铁路的大量修建、工业及民用建筑用地，出现了大量岩土边坡问题。
These are of certain reference value and practical significance on the open mining and the stability evaluation of the slopes of the open pit.
这些对露天开采及露天矿边坡的稳定性评价具有一定的参考价值及实际意义。
In open pit mining project the stability of high slope is affected and controlled by many factors, such as topography, meteorology, hydrology, stratum lithology and geological structure conditions.
露天采矿工程中的高边坡稳定性受到很多因素的干扰与控制，其中包括地形条件，气象、水文条件，地层岩性条件，地质构造条件等。
Production of dust in the course of open pit mining in Jinduicheng Molybdenum mining Corporation was analysed. The prevention and counter measures of dust pollution was put forward.
分析了金堆城钼业公司露天采矿过程中粉尘污染物的产生，提出了粉尘污染的防治与对策。
Some problems about mining engineering from open-pit to underground mine are discussed, which will provide reference for the future work.
对永平铜矿露天转地下开采工程有关问题进行了探讨，为下一步工作提供参考。
The presented article employs numerical simulation to analyze the stability of the open pit slope when mining in the open pit slope and mine.
在先露天后井工的开采条件下，研究了井工开采对露天边坡稳定性的影响过程。
The stability of boundary pillar, which can be found across in mine shifting from open-pit to underground mining, is very important for safe production of underground mine.
境界矿柱稳定性分析是露天转地下矿山经常遇到的问题，对于矿山进行地下开采安全生产极其重要。
For mining pits, especially those open-pit mines where water accumulation is serious, it is difficult to achieve ideal blasting effect in blasting-drilling by general blast methods.
对于采场尤其是爆破钻孔积水严重的露天矿山，一般的爆破方法难以取得理想的爆破效果。
An experimental test of bench mining in the high and dangerous slope of a certain open-pit mine was made.
在某露天矿山的高危边坡上进行了台阶采矿的试验研究。
The establishment of the computer model for the ore body of open pit mine is the basis for the optimization of deposit mining boundary and the mining production scheduling.
露天矿矿体计算机模型的建立是进行矿床开采境界优化及制定矿山生产计划的基础。
In this paper, the research is carried out deeply aimed at the problems of the structure parameters of underground stope for transition from open pit to underground Mining in Shirengou Iron Mine.
针对石人沟铁矿露天转地下过渡期开采I区地下采场结构参数问题展开了深入研究。
Design a operative scheme which can carry out transferring from open pit mining into underground mining successfully.
设计出一整套操作性很强露天转地下开采方案。
A large amount of dust and harmful gas are produced in the open - pit mining process, which can affect a large area and cause serious consequences.
露天矿开采过程产生大量粉尘和有毒有害气体，影响范围广，造成严重后果。
The red soil in open-pit mine in inner-Mongolia has specifical engineering geological properties and limits the utilizable function of mining and hauling equipments.
内蒙露天煤矿中红土的工程地质性质特殊，它制约着采运设备效率的发挥。
This paper introduced the experiments on the large grain size and high heap gold leaching of stripped lean ore from open pit mining of gaolong co.
介绍了高龙公司利用露采剥离贫矿进行大粒度、大堆高的堆浸提金试验。
When the same orebody is being mined in a combined open pit and underground mining system, there is an interaction and overlapping of mining inducement which exhibits self-organizing behavior.
露天地下联合开采同一矿体时，其采动效应相互影响和相互叠加，具有自组织特性。
During more and more open pit transiting to concavity open mining, people make much account of the study on the best slope mechanical configuration, which in favor of the stability of concavity slope.
随着越来越多的露天矿山转入深凹露天开采，有利于深凹边坡稳定性的最优边坡力学形状研究越来越受到人们所认识和重视。
During more and more open pit transiting to concavity open mining, people make much account of the study on the best slope mechanical configuration, which in favor of the stability of concavity slope.
随着越来越多的露天矿山转入深凹露天开采，有利于深凹边坡稳定性的最优边坡力学形状研究越来越受到人们所认识和重视。
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