1) surface bench mining
露天台阶式开采
1.
Emphases were placed on working experience on surface bench mining in limestone mine and relevant theories.
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。
2) Surface bench mining t Active fault
露天台阶开采
3) open stage
露天台阶
1.
By open stage deep hole blasting,the stone material is directly used in to enclose the tideland for cultivation and dam construction.
采石场石方开采量为150万m3,采用露天台阶深孔爆破,石料开采后直接用于围垦工程的抛坝施工。
4) open-air stage
露天台阶
1.
According to specific geological conditions of Jiujialu mine area,deep-hole blasting open-air stage is explored in this paper.
根据九架炉采区具体地质条件,进行露天台阶深孔爆破的实践探索。
5) Open-pit mining
露天开采
1.
Feasibility of open-pit mining on shallow coal pillars of mine
矿井浅部煤柱露天开采可行性研究
2.
Research on the safety and stability of slope in open-pit mining is very significant to safety production of open mines.
研究露天开采边坡的安全稳定对露天矿山的安全生产具有重要意义。
3.
Accor ding to the depth increasing of open-pit, the ore source of open-pit mining is decreasing day by day, at the same time, the condition of open-pit mining turns into very hard, so some open-pit mines start to transfer into the underground mining.
随着露天开采矿山深度的增加,地表矿石资源日益匮乏,同时露天开采条件也变得越来越复杂,许多露天开采的矿山已经转入地下开采。
6) Open mining
露天开采
1.
Building of analog virtual laboratory for open mining;
露天开采模拟虚拟实验室的建立
2.
Preliminary exploration of the cause of land slip and its prevention and control in the open mining of metal mines;
金属矿山露天开采滑坡原因及防治技术初探
3.
Open mining aims at Sedimentary and Accumulative bauxite,underground mining is for Permian bauxite,Middle-upper carboniferous bauxite and mid-Carboniferous bauxite.
调查表明,目前国内铝土矿85%以上为露天开采,其余为地下开采和民采。
补充资料：露天矿组合台阶
露天矿组合台阶
combined-bench of open-pit
}ut一onkuong Zuhe to一J一e露天矿组合台阶(eomblned一bene一of open-pit)将露天矿剥岩帮上若干个生产台阶组合在一起作为一个开采单元，进行轮流开采的一组台阶。它是露天矿陡帮开采工艺的一种作业方式。其开采程序是挖掘机自最上一个台阶逐个向下进行开采，采完该组最下一个台阶后，挖掘机再上到最上一个台阶进行下一个循环的采剥程序。组合台阶结构要素见图，其值的确定主要取决于矿体赋存条件、矿山规模、装备水平、新水平开沟位置、采剥推进方向等因素。中国南芬露天铁矿、德兴铜矿已应用组合台阶开采。美国和加拿大等国家均普遍采用。 (田泽英)一气………{…{… 组合台阶开采 内红阶高度寿全转北工作平台宽度‘}了工作平盘宽度 召，推进宽度。台阶坡面角冲工作帮坡角
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条