露天开采的矿山

It is suitable for the engineering of various open- pit mines and large excavating- hauling combined operation.

它适用于各种露天开采的矿山和大型采掘运输联合作业的工程。

With regard to the by stages and by divisions mining characteristics in Nanfen Open Pit Iron Mine,we integrated the stripping of different stages and divisions with one another, and adjusted the elevation of haulageway,built short distance,low level haulageway,thus lowering the consumption of fuel on trucks,reducing the operation cost of the mine,resulting in favourable economine benefit.

针对南芬露天铁矿多分期多分区开采的特点，把不同分期分区的剥岩相结合，适时调整出入沟标高，建立近距离低标高运输通路，降低矿车的柴油消耗，避免追加矿山运营费用，经济效益可观，在同类矿山发展中有一定的参考价值。

Six causes were analyzed, which are connected with toes after blasting: including geological condition, insufficience in terms of plugging length, burden, charge quantity and subdrilling, and unreasonable initiation technology.

以在水泥矿山露天台阶式开采的经验和相关理论为主，分析了与产生根底有关的六个方面的原因：地质条件恶劣、堵塞长度不足、抵抗线太小、装药量不足、超深不足、起爆技术不合理，并提出了相应的减少爆后根底的一些对策，并列举了一个工程实例。

Most of large and middle scale open-pit mines in China have reached deep mining.

我国的大多数大中型露天矿山已经或即将进入深部开采。

The iron ore used to make steel comes from open-pit and underground mines.

译：炼钢用的铁矿石来自露天开采的矿山和地下矿井。

As the quarry operation evolve, the deeper the pit, the higher and steeper of the highwall, and thus, the influence of blasting vibration may affect the potentially unstable slope which may cause safety problem and result in the shut-down of the overall mining operation.

在露天矿场开采过程中，随著开采深度的增大，其边坡越来越高，特别是对於那些存在不稳定因素的高陡边坡，倘若受爆破震动的影响，极有可能造成边坡的失稳破坏，危及安全生产甚至影响矿山的正常生产秩序。

By using ideologies of logistic planning and methods of linear programming, the mathematic model of logistics distribution is established to study rock dumping scheme optimization for hypaethral mines with three-dimensional block structure.

以矿山的三维块状模型为基础，将物流规划思想和线性规划方法相结合，建立物流运输线性规划数学模型，研究露天矿山的排岩优化问题，得出在最小运输功下开采境界内所有岩块去往各排岩场的流向和流量。

The characteristics and application of the main mining methods of China's metal mines and their improvement and application prospect are discussed. In view of the existing technical basis and the trend of the demand of China's economical development on metal mines' resource, the future development of mines is prospected. Several feasible concepts are given such as the development orientation of mathematical mine and artificial intelligency, optimization of the hauling system of open pit mining and open...

讨论了我国金属矿山主要采矿方法的特点、应用情况、得到的改进及应用前景，针对现有的技术基础以及我国经济发展对金属矿资源的需求趋势，对未来矿山的发展进行了展望，重点提出了数字矿山、人工智能等发展方向，及进行露天开采运输系统优化和地下开采露天化几种可行性的设想，为我国采矿工作研究者提出了几种新的课题。

Results show that composite geophysical methods increase the accuracy and precision of mined-out areas detection, and position, distribution and transfixion relationship of group mined-out areas are found out basically, which can offer security guarantee condition when opening working turns to underground working in the mine.

探测结果表明，综合物探方法提高了采空区探测的准确度和精度，基本查明了群采空区的层位、分布、范围和贯通关系，为矿山由露天开采转入地下生产提供了安全保障条件。

After combining LanYingXu stope, the practical problems have found in augment production stripping-ratio and lower conveying capacity of augment barren rock . The detailed study have been done to control the production stripping ratio ,the economic stripping ratio and optimal limit depth in the exploitation of middle and bottom LanYingXu stope .The economic mathematical model has been established and the application has been built in windows visional system. The optimal result can offer the referenced. Basis for mining production ,for organization and management.

并根据兰营徐统一采场后，生产面临的剥采比增大、废石运量增加、运输能力降低、露天开采深度越来越大的生产实际问题，对兰营徐采场中深部开采的生产剥采的控制、经济合理剥采比及最终开采深度进行了详细的研究，建立了经济数学模型，并编制了Windows环境下的可视化的应用程序，计算出了优化结果，为矿山生产、组织管理提供了参考依据。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。