open pits

Interior mining operations use huge machines working in open pits to dig down under the earth's surface to get sand left behind by ancient glaciers.

内陆采砂采用大型机械露天作业，挖开地表，以便开采出古老冰川留下的砂石。

The slope model of the Yimin open pits was established and solved by FLAC program.

运用FLAC程序，对伊敏一露天矿端帮边坡进行了数值模拟计算。

Overview of road dust suppressants in open pits

露天矿山运输路面抑尘剂的研究与综述

Optimization and Control of Cutoff Grades in Metal Open Pits under Market Economical Conditions

市场经济下金属露天矿边界品位的优化与控制

Some measures of lowering boulder yield in long-hole blasting of open pits

露天深孔爆破中降低大块率的技术措施

In this paper, the common problem faced by large deep open pits is put forward through analyzing the development of mining industry in China.

分析国内采矿业发展形势，指出大型深凹露天矿山面临的共性问题；

Fissuring rock which is a type of fractur fissure structure plays a serious impact on the blasting quality of longhole in open pits because of a reduce in blasting energy transmission and pressured air leaking in the case.

裂隙性矿岩属碎裂结构岩体，由于能量传递效率减低和泄压严重，极大地影响了爆破质量。

Study on the Relationships Between Boulder Yield ( BY) and Borehole Blasting Parameters in Open Pits

露天深孔爆破大块率与爆破参数之间的关系研究

The significance of ditching ratio per ten thousand ton ores for open pits is given, and how to use this index to test productive capacity of stope is briefly discussed.

对露天矿万吨矿石开沟比的含义，及如何利用这一指标对采场生产能力进行检验，作了简要的论述。

This paper deals with the way and results of stability analysis of the rock slopes of open pits at Huan Jinpin phosphorus mine.

本文阐述了对黄荆坪磷矿露天边坡稳定性分析研究工作特征及结果。

Reliability of equipment systems in open pits

露天矿设备系统可靠性研究

Test of hydraulic blasting method in the secondary blasting of blocks in open pits

水压爆破法在露天矿大块二次爆破中的试验研究

Space Time Relationship Between End Slope Coal Extraction and Dumping and Mining of Open Pits

露天矿端帮采煤与露天采排工程的时空关系

Gentle touches on survey management in open pits

浅谈露天矿测量管理

Study on computer simulation for rock fragmentation and throw after blasting in open pits

露天台阶爆破岩石破碎与抛掷的计算机模拟研究

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

露天矿分期开采若干问题的研究（上）

The principal loading equipment at chinese open pits is the 4m~ 3 electric shovel.

露天矿的装载设备以4米~3电铲为主。

It is necessary to use two stage selective earthing protective device in the power supply system of open pits.

露天矿供电系统中采用两级选择性接地保护装置十分必要。

In this paper, based on the trimmed surface and polygon, the open pits 3D visualization deposit model is founded. This model is one combing deposit interface model with earths surface model.

基于裁剪曲面和不规则多边形，建立了露天矿三维可视化矿床地质模型，这个模型是由地质界面模型和地表面模型组合而成的。

Optimum decision on sub-cutoff grades and stockpiles in metal open pits

金属露天矿次边界品位和次品位储矿堆的优化决策

This article mainly describes how open pits strengthen measurement management and make full use of computer in measurement so as to provide accurate measurement information in time.

本文主要介绍露天矿山如何加强测量管理，充分发挥计算机在测量中的作用，为矿山生产及时准确提供测量资料，以检查计划安排的完成情况。

On availability of index for ditching ratio in open pits

谈露天矿开沟比指标的实用性

Study on loading and transporting system in open pits

露天矿装运系统数研究

The paper introduces an application of computer simulation technique in the railway transportation in open pits, comprising the collection and processing of data, system analysis and computer programming in ALGOL language and realized on a TQ-16 computer.

本文阐述了电子计算机模拟方法在露天矿铁道运输中的应用，内容包括资料的收集和整理，系统分析和计算机程序的形成。

Mining Truck gradually develops toward large-scale, and dump trucks over 300 tons have been become the mainstream transportation equipment of large open pits over the world, played an important role in mining.

矿用自卸车逐步向大型化发展，300t以上的自卸车已成为世界上大型露天矿山的主流运输设备，在矿山开采中发挥着重要的作用。

Phased mining technology of metal open pits in China and abroad

国内外金属露天矿的分期开采技术

Deephole Blasting in Water Medium in Open Pits

露天深孔水介质爆破

Optimization of mining sequence for open pits

中国煤矿露天开采程序的优化研究

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.

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。

Application of Dynamic Programming Optimization for Stripping ratio of Open Pits

露天矿剥采比动态存储优化的应用