Through joint venture and cooperation of Shashuya west phosphate rock ore block formed mining enterprises, etc. at the same time.
同时通过合资、合作等形式新建了宜昌杉树垭磷矿西矿段等矿山企业。
High grade ore block often located in winding part of fault in strike and dip or intersection part of faults of NW and NE strike.
富矿段主要产于断裂在走向和倾向上的波状弯曲处以及NW与NE向断裂交汇部位。
In the Niuxinshan ore block of Huajian gold deposit region, gold ore body is divided into two types of altered rock and quartz vein.
铧尖金矿牛心山矿段，金矿化(体)分为蚀变岩型和石英脉型两种。
By optimizing the sequence of panel mining stope of ore block, the mining sequence of the "two stope panels" is applied for the mine.
对阶段中盘区回采顺序进行优化，得出“隔二采一”的最佳开采顺序。
And our chief Mineral products are acid-grade fluorspar powder, metallurgical grade fluorite ore block, fluorspar lump, calcium fluoride, ect.
公司主要矿产品有：酸级萤石精粉、冶金级萤块矿、粒矿、萤石烘干粉等。
On the basis of safety production, selecting appropriate parameters of ore block structure is particularly important for the design and construction of the mine.
在确保安全的基础上，选取合理的矿块结构参数，对矿山设计和建设尤为重要。
The hanging wall block is relatively little disturbed, but the ore zone beneath bears abundant evidence of tangential movements .
上盘岩块相对地变动不大，而其下的矿石带却具有许多切线运动的证据。
All the methods are based on economic block model of ore body built according to geological statistics theory.
这些计算机优化方法都是在应用地质统计学方法建立的矿床块段模型基础上实现的。
The North China Block is the distributive province of the important iron ore reserve, the main-iron-ore-mining region, and is also the important district of the iron and steel industry in China.
华北陆块是我国重要铁矿资源的分布区，铁矿石主要开采区，也是我国钢铁工业的重要分布区。
The process of ore- drawing in block caving is completed under overburden.
自然崩落法放矿基本上都是在覆盖岩层下进行的。
The ore fragment size for block caving is predicted by means of topology, vector field conception and computer simulation technology.
运用拓扑学、矢体概念以及计算机模拟等技术对矿石崩落块度进行预测。
The system is suitable for ore-drawing management of high level and large drawing area of block caving system.
该系统适合于大规模、高阶段矿块崩落法放矿生产管理。
The characteristics and fundamentals of ore drawing control in block caving method are described and computer-based production scheduling for this mining method is studied in the paper.
本文阐述了自然崩落法放矿的特点及其放矿管理的基本原理，探讨了应用计算机进行自然崩落法排产的基本方法。
To block stoping, mining system design mainly includes design of block parameter, design of pillar's dimension, design of ore drawing sequence.
对于阶段空场法，采矿系统设计主要包括采场结构参数、矿柱大小、回采顺序等。
This paper presents a practical final-pit optimization algorithm for open-pit metal mines based on a breakeven strip ratio and a block model of ore grade.
给出一个基于经济合理剥采比和品位块状模型的露天金属矿境界优化实用算法。
The ore-body block model is not only widely used in ore grade and reserve calculation, but used in the optimization of the final mining boundary and mining plan in the open pit.
矿体块状模型广泛应用于品位、储量计算，也可用于露天矿最终开采境界优化和开采计划优化。
Then, it is to remain some blasted ore to block the drift outlet at the last mining level to prevent the impact of air flows induced by the rock falling.
保持最下一层空场出矿分段的进路端部出矿口不敞空，防止冒落冲击危害。
Prediction for block caving velocity of ore-rock is a complex dynamic process that relates to the caving rule and to the relation between caving and time.
矿岩自然崩落速率预测是一个涉及崩落规律和崩落与时间相依关系的复杂动态过程，通过数值模拟的方法，对流变断裂型矿岩的自然崩落规律和崩落速率进行了模拟研究。
Prediction for block caving velocity of ore-rock is a complex dynamic process that relates to the caving rule and to the relation between caving and time.
矿岩自然崩落速率预测是一个涉及崩落规律和崩落与时间相依关系的复杂动态过程，通过数值模拟的方法，对流变断裂型矿岩的自然崩落规律和崩落速率进行了模拟研究。
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