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- In this thesis, according to the condition of Mujia Hill, the method of roof cutting and ore pillar dilapidation is proposed. 介绍切顶支柱使用情况下的工作面矿压特性,分析切顶支柱对顶板管理的作用。
- The salient features is used manual pillar instead of ore pillar belt to suppout unstable roof,and increases the recove. 其特点是,采用人工柱替代矿石柱,锚杆网支护不稳固顶板,大幅度地提高了矿石回采率。
- LI Hong,XU Zeng-he,XU Xiao-he,et al.Criterions and forewarning of ore pillar rock bursts in asymmetric mining[J].China Mining Magazine,1997,6(1):46-51. [4]李宏;徐曾和;徐小荷;等.;非对称开采时矿柱岩爆的准则与前兆[J]
- As a result,the short hole shrinkage method with flat bottom structure was employed to mine the stope firstly,then stoping ore pillar by medium length hole caving method. 后沟金矿采用平底结构浅孔留矿法先采矿房，后用中深孔崩落法回采矿柱，经两年多的生产实践，取得较好的技术经济指标。
- disturbance of ore pillar and wall rock 矿柱及围岩扰动
- Ore pillars are fasic units forming this deposit,the occurrence of which are coincident with the two sets of structure lines. 矿柱是组成该类矿床的基本单元，其产状与两组构造的交线产状基本一致。
- Research on CMS-Aided Blast Design for Ore Pillar Extraction 采用CMS辅助矿柱回采爆破设计研究
- The practice of recovering ore pillar of gentle dip and narrow vein 缓倾斜薄矿脉矿柱回收实践
- This subject introduce some common rectangle ore pillars and its advantages,and rock mechanics analysis and evaluation of rectangle ore pillars support effects. 介绍了几种常见矩形矿柱及其优点,并对矩形矿柱的支撑效果进行岩石力学分析和评价。
- A creeper was entwined round the pillar. 一根攀缘植物缠绕在柱子上。
- He has been a pillar of the Church all his life. 他一生都是教会的热心支持者。
- The ore is smelted in this large factory. 这个大型工厂里熔炼矿石。
- The enemy was hurried from pillar to post. 敌人被赶得东逃西窜走投无路。
- First, ore is mixed with coke and limestone. 先把铁矿石和焦碳、石灰石混合在一起。
- The master tied me to a pillar and whipped me savagely. 主人把我捆在柱子上，用鞭子死命地抽我。
- We will make an assay of the ore that he brought. 我们将对他带来的矿石做实验鉴定。
- I can't decipher what is inscribed on the pillar. 我认不出刻在柱子上的是什么。
- He had been the pillar of the club all his life. 他一生都是这个俱乐部的台柱。
- The pillar had been restored to the perpendicular. 这柱子恢复垂直。
- The robber tied him to a pillar. 强盗把他捆在柱子上。
