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- Opencast mining is relatively safer. 露天矿的采集危险相对较小。
- Features: rock drilling for opencast mining and quarrying field. 适用于露天矿、采石场开采,用于高低风压潜孔钻机。
- This new diesel-electric mining truck puts all other transport vehicles used in opencast mining in the shade. 此新型柴油-电动矿用卡车使露天采矿中所用的其他所有交通工具黯然失色。
- It is necessary that stripping plan be timely provided during the opencast mining. 露天矿生产过程中,需要及时提供采剥工程平面图。
- Pingshuo opencast mine started production in 1985,to undergo mining for centuries,the surface will be damaged severely. 平朔矿区从1985年开始投产,要经历近百年的开采,地表破坏剧烈,利用遥感技术可以监测这种变化。
- The eco-environmental harness of opencast mine has been an important part of ecological restoration in China. 露天开采矿山的生态环境治理已成为我国生态环境治理的一个重要组成部分。
- These measures not only are beneficial to ream stripping of opencast mine but also ensure the s... 这些措施既有利于露天矿的扩帮剥离,又保证了爆区附近民房的安全。
- A new method to calculate the lateral pressure and horizontal crustal stress of the slope in opencast mining has been giv... 提出了露天矿边坡侧压力及水平地应力计算的新方法,找出了露天矿边坡水平地应力的竖向分布规律。
- As Houxi Opencast Mine has smaller mining boundary and it is near villages,the safety of mining and controlled blasting are strictly required. 侯西露天矿开采境界小,距离村庄近,对剥采作业安全性、控制爆破技术有较高的要求。
- Gradient selection of side-slope, side-slope protection and side-slope glide control for opencast mining are tentatively investigated in the paper. 本文对露采边坡的陡度选择、边坡保护以及边坡下滑的处理,进行了初步探讨。
- The landslide, which is a common damage in the opencast mine, is one of the natural disasters with bigger harms. 滑坡是露天矿常见的边坡破坏现象,是危害较大的自然灾害之一,通过对边坡滑坡机理的分析,可以预报滑坡的发生;
- In 1993,underground mining was carried out in Zijinshan Gold Mine,and after several extensions opencast mining was accepted in 1997. 紫金山金矿于1993年首先进行地下开采,几经扩建后1997年转向露天开采,当年实施上部矿体覆盖层揭顶大爆破,低成本大批量剥离废石;
- The giant opencast mines of Rio Tinto create a surreal, almost lunar landscape. 力拓矿业集团的巨大的露天挖掘煤矿构成了宛如仙境又貌似月球的风景。
- Based on which, it made brittle analysis to conveyance system in adit-pass of opencast mine, the result accorded with fact. 基于模糊层次分析法对露天矿山溜井平硐运输系统进行了脆性分析,分析结果与实际情况一致。
- This paper introduces all methods for estimation of fragment size distribution after blasting in opencast mining, new methods and their developing trend at abroad. 本文介绍了各种用于测量露天矿爆破后岩石块度分布的方法和国外采用的最新方法及发展动向。
- The information refers to slopes in opencast mines, quarries, dam foundation excavations and highway outs. 这份资料提供了有关露天矿、采石场,坝基和公路堑的边坡资料。
- A vibration velocity measurement and research of a side blasting with non-floor pillar sublevel caving stoping for transforming opencast mining into underground mining in Daye iron mine is made. 对大冶铁矿东露天转地下开采无底柱分段崩落法回采挂帮矿爆破振动速度的测试与研究表明,质点爆破振动速度与单响最大爆破药量、爆心距、炸药种类和堵塞情况有关。
- The large tonnage trucks are used in China's big opencast mines widspreadly and so consumption of giant tires is steadily on the increase. 我国大型露天矿已普遍使用大吨位载重汽车,与之配套的巨型轮胎消耗量亦与日俱增。人们发现在大量报废的轮胎中,相当数量是因为使用中胎压过低而损坏。
- The paper discusses the employment situation of big excavator in domestic mine, big excavator in Benxi Steel Nanfen opencast mine is made for example to illustrate its action in mine production. 主要讨论了大型挖掘机在我国矿山上的使用情况,以本钢南芬露天矿的大型挖掘机为例说明其在矿山生产中发挥的作用。
- The spoilbank is a place in the opencast mine where the engineering disasters easily happen, and the control of the disasters of the spoilbank is ve ry important for the mine enterprises. 排土场是露天矿山工程灾害的易发部位,加强排土场灾害治理对矿山企业具有重要意义。