露天矿

The water interception and drainage system of east open pit of Daye iron mine and its many years of experience were introduced in detail. Some problems worthy of notice in water interception and drainage system of deep open pit were proposed.

详细介绍了大冶铁矿东露天所采用的截水排水系统和该矿多年截排水方面的经验，对深凹露天矿的截排水提出了一些值得注意的问题。

The test data show that the loose scope of slope rock mass is wide, the rock mass of surface and interior of slope is from super crash to crash , the integrality of rock mass is very awful. The research result provides the reference for slope shape optimizing .

测试表明，边坡岩体的松弛层范围较大，边坡及边坡内部的岩体均为极破碎-破碎岩体，岩体完整性非常差，研究结果为凹陷露天矿边坡形状优化提供了依据。

Home position shear tests of slope rock, point loading tests and indoor AMD simulation action tests in XingQiao concave slope had show shearing strength and coherence between body layers of quartz sandstone decrease by 13.2%~21.3% after attacked by AMD, the angle of internal friction between layers is decreased by 5.0%~7.5%, in general, AMD affects the rocks mechanical property at range of 60~100m interior the perpendicular slop. Data analysis shows: 1 The actions to slope are major focused on zone of weakness, shearing strength of slope foot and AMD centre are reduced by 52% and 64.7% separately. 2 The explosion stress wave of long distance field has obviously increasing influence to disturbance amplitude value of slope with increasing of the slope height and distance, the response of the top of slope and fault region are obvious as well as damage effect; the foot of slope is with smallest disturbance amplitude value, the disturbance amplitude value of the step close to free face is obviously bigger than the interior of slope. 3 With the coupling effect of the AMD and explosion loading, the stress distribution inside of slope mainly presents characters of explosion stress field; the area affected by AMD becomes a weak area of shearing stress.

新桥深凹露天矿边坡岩体的原位剪切试验、点载荷试验、室内模拟AMD作用试验表明：AMD蚀化后的石英砂岩，岩体层面间的抗剪强度和粘聚力减小的幅值约为13.2%~21.3%；层面间内摩擦角减小幅值在5.0%~7.5%之间；AMD一般影响垂直边坡体内部在60~100m范围内的岩体力学性质数值分析表明：AMD对边坡体的作用主要集中在弱化区域内，边坡体的底脚和AMD作用中心区域的剪切应力减少了52.0%和64.7%；(2)随着边坡体高度和距离的增加，远场爆炸应力波对边坡扰动幅值的增加趋势明显，边坡顶部和断层部位的响应突出，损伤效应明显；边坡底脚扰动幅值最小，临空面附近台阶的扰动幅值明显大于边坡体内部；(3)AMD与爆破荷载耦合作用后，边坡体内部的应力分布主要呈现出爆炸应力场的特征，AMD影响区域形成了一个剪切应力弱区。

With the formidable data processing and programming function of MATLAB, linear superposing of one segment blasting vibration waveform, obtained from the locale vibration testing, with different time delay is carried out in this thesis, and a reasonable time delay for Jinduicheng mine bench blasting is got in the end.

本文利用MATLAB强大的数据处理编程功能，实现了对实测单段爆破振动信号在不同微差时间下的线性叠加，得到了金堆城露天矿某一爆破区域不同距离的合理微差时间。

From the viewpoint of systems engineering the paper has studied the method and theo-ry of the stepwise mining limit for the inclined ore bed with the help of operational research and computer.

本文从系统工程的角度出发，运用运筹学和计算机，对倾斜矿床露天开采分期境界优化的方法和理论进行了探讨；在倾斜矿床露天矿长远规划模型的基础上，建立了分期开采境界优化模型。

The final 30% open pit mining now underway also happens to be the highest grade part of the ore body.

剩余30%的露天矿开采工作正在进行，并且是岩体品位最高的部份。

The development, structure performance and new technology application of such large scale open pit loading equipment as electric shovel, hydraulic excavator and wheel loader were described.

论述了露天矿大型装载设备电铲、液压挖掘机和轮式装载机的发展概况、结构性能及新技术的应用。

The paper analyzes problems of traditional wheel type electro-hydraulic brakes in belt conveyor .

分析了带式输送机装设传统的轮式电液制动器存在的问题，针对神华准格尔哈尔乌素露天矿选煤厂M14等4条带式输送机的布置和多点驱动，提议使用轮式防爆液压机械闸。

The paper analyzes problems of traditional wheel type electro-hydraulic brake s in belt conveyor.

分析了带式输送机装设传统的轮式电液制动器存在的问题，针对神华准格尔哈尔乌素露天矿选煤厂M14等4条带式输送机的布置和多点驱动，提议使用轮式防爆液压机械闸。

In this paper, a detailed survey Haizhou open-pit analysis of sea-state landslide mineral health reasons, and mine on the sea state generated from the production of more than 80 times since the landslide statistics and analysis, based on an analysis made use of anti-slide piles anchor of the Supporting form an unstable slope, governance, and made several recommendations for reference.

本文对海州露天矿的详细调查分析了海州矿产生滑坡的原因，并且对海州矿自生产以来产生的80余次滑坡进行统计和分析，根据分析提出，采用抗滑桩加锚索的支护形式对不稳定的边坡进行治理，并且提出了几个建议以供参考之用。

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。