露天矿

The procedure of using Mintec software to establish blasthole model is also described.

张贤荣，高祥，露天矿生产炮孔模型的建立及应用

The application of the blasthole model in some aspects such as short term plan, ore control, modification of production plan and production control are summarized.

介绍了露天矿生产炮孔数据及地表现状数据的收集整理，阐述应用MINTEC软件建立生产炮孔模型的过程，对炮孔模型在短期计划、矿石控制、生产计划的平衡与调整及生产控制等方面的应用作了总结，并提出了看法。

Keywords Blasthole model;Short term plan;Ore control;Geostatistics;Open pit

炮孔模型；短期计划；矿石控制；地质统计学；露天矿

The samples were taken from the slope of Haizhou Opencast Mine in Fuxin city.The results show that some components,such as the total hardness and sulfate,above-norm seriously in the beginning of the leaching experiment,and then became stable rapidly with the increasing of eluviate volume,and the pH values of eluviation solution more than seven.Haizhou surface mining will effect the groundwater for 20-25 years.

对从阜新海州露天煤矿岩质边坡取得样品的淋溶实验表明：淋溶初期总硬度、硫酸盐等组分严重超标，各组分随淋溶总体积的增加迅速趋于稳定；淋溶过程中pH＞7，淋溶液偏碱性；海州露天矿开采会对地下水影响20～25 a。

The Mowana open-pit mine in Dukwe, Botswana, owned by African Copper started preliminary production in July, although it will take three to four weeks to achieve commercial production.

7月份，非洲铜业公司旗下位于博茨瓦娜Dukwe地区的露天矿Mowana开始投产，尽管其达到商业生产之前还需三至四周的时间。

Some techniques such as the development of casting blast technique in surface mines, the inherent relationship between the stripping bench parameters and casting blast effect, the application of pre-splitting blast and inclined drilling, the function of millisecond delay blast between drill holes and lines are introduced and discussed. The traditional calculation method of combining theoretical analysis with experimental formulas, and the nomograph model method by D' Appolonia for optimal determination of casting blast parameters are also introduced in detail.

对露天矿抛掷爆破技术的发展、倒堆剥离台阶开采参数与抛掷爆破效果的内在联系、预裂爆破及倾斜钻孔的应用、排间延时及孔间延时的作用进行了分析与论述，详细介绍了采用理论结合经验公式的常规计算方法与D' Appolonia&图解法&模型确定抛掷爆破参数的过程及优化方法。

Serious erosion of soil and water in refuse dump is key and main task of land restoration in open cast mine of steppe region, which induce salination and degradation of soil in surroundings.

沙棘是草原露天矿排土场理想的复垦植物，可以在短时期内形成郁闭的人工沙棘灌丛，土壤培肥和水土保持效果显著，并明显减缓坡下草场盐渍化程度。

The scheme design and recovery evaluation of low calorific value coal from gangue ;2. Research of switched reluctance motor control system for coal gangue hoist;3. To avoid wasting of coal resource,mitigate mixing of gangue into coal and raise benefit of mine,it is decided to carry out feasibility study of dry dressing of gangue -containing coal.

霍林河1#露天矿煤层赋存条件复杂，采用大型设备有绝大部分薄煤层无法分采，而造成煤炭损失，为了降低煤炭资源的浪费、减少矸石混入、提高煤矿的经济效益，决定对杂煤进行干式分选的可行性分析研究。

Combining practice at Nanfen Open Pit and applying statistical analysis,the paper introduces the measuring,analyzing and calculating of reliability of three types of detonating points between detonating cord and nonel tube .

结合南芬露天矿的实际，运用统计分析的方法，对导爆索与导爆管3种类型的传爆结点可靠性进行抽样测试、分析与计算，初步确定了其3种类型传爆结点的可靠性指标，并对其可靠性进行了评价。

This paper expounds the geology disasters of the strip mine,and investigation for the flood control and drainage management in the mine district and surrounding area,the city flood control plan and geology disaster control plan and executing,and compares their reason formed and rainfall inducement and watercourse transmission flood,and put forward the existing issues.

本论文对西露天矿地质灾害情况，矿区防、排水及矿区周边河道防汛安全情况进行了调查，同时考察了城市防洪预案和地质灾害预案的编制及执行情况。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。