1)Pillar extraction矿柱回采
英文短句/例句
1.open-end method(采矿) 敞开进路式矿柱回采法
2.Mine Pillars Mining with Small-scale Coal Mining Approach in Small Coal Mine小型煤矿采用小进路采矿法的矿柱回采
3.When the ore is particularly valuable, the walls and pillars are often removed at a later stage and the roof of the chamber is allowed to cave in. This technique is known as robbing.如果矿石特别宝贵，矿壁和矿柱常在最后回采，让采场顶板冒落。这一技术叫矿柱回采。
4.Integrated Technology of Middle Pillar Stoping Under Dry Filling Materials干式充填体下中段矿柱回采综合技术研究
5.Optimize of Ore Pillar Mining Methods Based on Fuzzy Synthetical Judgment基于模糊综合评判法的矿柱回采方案优选
6.The Application of Heterogenous Interface Control-blasting Techniques in the Mining of High-level Pillars at Anqing Copper Mine异质界面控制爆破技术在安庆铜矿高阶段矿柱回采中的应用
7.pillar robbing【采矿】回收矿柱法
8.Mining design procedures of the deep mining process sublevel caving stoping method无底柱分段崩落采矿法回采设计方法
9.The Technology and Practice of the Safe Pillar Stoping in the Mined Area of Shizishan Copper Mine狮子山铜矿采空区矿柱安全回采技术与实践
10.Study on the Reclimaning of Fault Waterproof Coal Pillar in Mafang Mine;马坊煤矿断层防水煤柱开采回收研究
11.Research of Extraction Quality Evaluation of a Stope and Safety and High-efficiency Extraction of Ore Pillar Based on a Cavity Monitoring System基于空区实测的采场回采质量评价与矿柱安全高效回采研究
12.A new method for the mining of gentle dip and mediun thickness orebody缓倾斜中厚矿体的一种新的采矿方法——深孔放顶连续回采房柱法
13.Ground Pressure Monitor and Pillar Robbing Technology in Dangping Baoshan Mining Region荡坪钨矿宝山矿区水平矿柱地压监测与回采技术研究
14.Increasing of ore recovery rate and decreasing of ore loss & dilution rate in the case of pillarless sublevel caving浅析无底柱分段崩落法提高矿石回采率
15.Research on the Pillar Extraction in Erxiashan Mining Area of Suhaitu Coal Mine苏海图煤矿二下山采区煤柱回收方法研究
16.triple-entry room-and-pillar mining三进路房柱式采矿法
17.It is a key for a high level pillar mining's success to prevent backfill from being destroyed.充填体不产生大规模破坏是高阶段矿柱成功回采的关键。
18.Spontaneous Combution and Firing Study on Air Return Workface of Steep Coal Seam with Pillar Mining Method in Shitun Coal Mine;拾屯煤矿急倾斜煤层巷柱式回采面发火规律研究
相关短句/例句
Pillar stoping矿柱回采
1.Acording to the vacant places volume and the pillars situation at -55?m level of Tong-guanshan Copper Mine,some excavating imitative calculation about the varied schems of pillar stoping have been done by finit element method,which provided reliable basis to pillar safe stoping.针对铜官山铜矿 - 5 5m中段目前的空区、矿柱现状 ,采用有限单元法对矿柱回采的多种方案进行了分步开挖模拟计算 ,为安全回采矿柱提供了可靠依
3)Pillar recovery矿柱回采
1.Stope pillar recovery in overall mining method;全面采矿法采场的矿柱回采
4)Ore pillar extraction矿柱回采
1.Application of little segment caving mining method without sill pillar in ore pillar extraction;无底柱小分段崩落采矿法在矿柱回采中的应用
5)pillaring[英]['pil?][美]['p?l?]矿柱回采
1.Application and practice of large diameter deep-hole blasting technology in pillaring;大直径深孔爆破技术在矿柱回采中的实践与应用
6)abstraction of pillar回采矿柱
延伸阅读
保安矿柱保安矿柱safety pillar b000n kLJangzhu保安矿柱(safety pillar)为保护地表地貌、地面建筑、构筑物和主要井巷，分隔矿田、井田、含水层、火区及破碎带等而留下不采或暂时不采的部分矿体。按留设的用途，又分井筒保安矿柱、境界矿柱，防水矿柱、断层破碎带矿柱等。新建矿山的各类建筑物和构筑物应布置在矿体开采后的最终移动境界之外，其边缘与地表移动境界线之间应留一条保护带。保护带的宽度应根据地表保护物的保护等级而定。中国规定:I级保护的保护带宽度为ZOm;I级保护为15m;l级保护为10m。由于地质勘探所圈定的矿体位置和矿体形状与实际开采后的情况可能有误差，因此用类比法选取的移动角圈定地表移动范围时，应考虑5。左右的误差值。为使受地下开采影响的地面建筑物、构筑物不遭损害，留保安矿柱保护是一种比较可靠的方法，但要丢失一部分矿产资源，因此留保安矿柱一般只用于小范围内的重要建筑物或构筑物的保护，以及开采贫矿、薄矿体或浅部矿体时的地表保护。 (颜荣贵李鼎权)
