煤矿顶板,mine roof
1)mine roof煤矿顶板
英文短句/例句
1.Study on the Apical Plate of the Water-Inrush Mechanism and the Technique of Prevention and Harnesing in Huafeng Coal Mine;华丰煤矿顶板突水机理及防治技术研究
2.Study on Dynamic Monitoring System Based on Ethernet for the Top in Coal Mine;基于以太网的煤矿顶板动态监测系统研究
3.Design of expert system of coal mine roof control and management based on MapInfo基于MapInfo的煤矿顶板管理与控制专家系统设计
4.Numerical simulation of deep-hole blasting and its application in mine roof weaken深孔爆破数值模拟及其在煤矿顶板弱化中的应用
5.Optimization of coal seam roof and floor stripping equipment for use in Shengli East No.2 Open-pit Coal Mine胜利东二露天煤矿煤层顶底板剥离设备优化
6.Analysis on Influence Elements of Coal Roadway Roof Stability in Halagou Coal Mine哈拉沟煤矿煤巷顶板稳定性影响因素分析
7.The Design of the System to Moniter the Roof Abscission Layer under the Well of the Coal Mine煤矿井下顶板离层位移检测系统的设计
8.Bolting Feasibility Analysis of compound roof entry in WuFeng coal mine五凤煤矿复合顶板巷道锚杆支护可行性分析
9.Fire Prevention Practice on Drilling Holes with Inclined Slices on Fully Mechanized Face Roof of Thick Seams in Junde Colliery峻德矿特厚煤层综放面顶板下斜钻孔防火实践
10.Rock pressure of high angle thick coal seam by numerical calculation大倾角坚硬顶板厚煤层矿压规律数值计算
11.Investigation on Failure and Water Inrush from Roof of 5th Coal Seam in Fangezhuang Coal Mine范各庄矿5煤顶板破坏及突水模拟研究
12.Control on rock friction sparks and heating-up of sandstone roof in a coal mine抑制煤矿砂岩顶板岩石摩擦火花和升温
13.Classification of Seam Roof Structure Type in Xutuan Mine Based on Fractal Theory基于分形理论的许疃矿煤层顶板结构类型划分
14.Developmental rules of the hydraulic fractured zone of working face 22101 in Huoluowan coal mine霍洛湾煤矿22101工作面顶板两带发育规律
15.Determination of Pressure Step for Hard Roof at XV2306 Working Face in Wangtaipu Coal Mine王台铺煤矿XV2306工作面坚硬顶板来压步距确定
16.Practices of Main Mineable Coal Seam Roof Processing in Aai Mine Area, Kuqa County, Xinjiang新疆库车县阿艾矿区主采煤层顶板处理实践
17.Research on the Tunnel Supporting and Propriate Coal Wedre Preserving under the Provide of the Upper Plate of Qiling Coal Mine;七岭煤矿坚硬顶板条件下巷道支护及合理煤柱留设研究
18.Research on Engineering Geological Properties and Stability of the 8_2 Coal Seam"s Roof of Xutuan Coal Mine许疃煤矿8_2煤层顶板工程地质特性及其稳定性评价
相关短句/例句
coal mining roof煤矿顶板分级
3)top roof and top coal顶板顶煤
4)predict the coal mining roof"s press煤矿顶板来压预测
5)seam roof煤层顶板
1.Design and application of horizontal long borehole for gas drainage inseam roof;煤层顶板瓦斯抽放水平长钻孔的设计与应用
2.There are 6 types of REEs in coals andseam roofs: water\|soluble state (Ⅰ), ion\|exchangeable state(Ⅱ), carbonate state(Ⅲ), organism\|bonded state(Ⅳ), sialic state(Ⅴ),and sulfide state(Ⅵ).在煤层顶板中 ,以硅铝化合物和硫化物结合态的稀土元素含量随着原子序数的增加而减少 ,以有机质结合态的稀土元素随着原子序数的增加而增加 ,且和煤层中稀土元素的赋存状态不同 ,表明不同沉积环境以及相同沉积环境对不同物质中的稀土元素的分馏效应是不同的 。
6)coal pile plate煤柱顶板
1.This paper introduces theoretical research and working practice of Jushan Coal Mine Limited Company by abandoned coal resource recovery under knife pile and summarizes a set of scientific method to controlcoal pile plate and coal capitals have achieved good effect.介绍了莒山煤矿有限公司通过对刀柱下弃置煤炭资源回收工作的理论研究和工作实践,总结出一套煤柱顶板及煤帮控制的科学方法,并取得了较好的应用效果。
延伸阅读
综采放顶煤综采放顶煤：厚煤层煤炭开采技术之一。把原来分层开采的煤炭，一次采完。方法是，在煤层底部按传统方法开采，使上面的煤炭在矿压的作用下，自动落下来。
