1) boundary pillar
境界矿柱
1.
Determination of boundary pillar's thickness of mine changed from open pit to underground by means of numerical simulation;
用数值模拟方法确定露天转地下境界矿柱厚度
2.
The stability of boundary pillar,which can be found across in mine shifting from open-pit to underground mining,is very important for safe production of underground mine.
境界矿柱稳定性分析是露天转地下矿山经常遇到的问题,对于矿山进行地下开采安全生产极其重要。
3.
The stability of boundary pillar,which can often be come across in mine shifting from open-pit to underground mining,is very important for safe production of underground mine.
露天转地下开采的矿山面临着一个主要问题就是境界矿柱的稳定性问题,境界矿柱留设的过薄,发生失稳破坏,可能造成突冒突涌灾害的发生；同时,境界矿柱留设的过厚, 造成矿石资源的浪费。
2) security boundary pillar
境界保安矿柱
3) coal pillar in minefield boundary
井(矿)田境界煤柱
4) boundary pillar
境界顶柱
1.
For a mine to be changed from an open pit to underground stope, the stability of the boundary pillar has direct influences on the safety production of the mine.
露天转地下开采的矿山 ,其境界顶柱稳定性将直接影响到矿山的安全生产。
2.
To solve the interaction problem between open pit and underground mine, people generally adopt open stope method which maintain a boundary pillar between the bottom of open-pit and the room top of the first underground middle section.
此时为了处理好露天与地下同时开采相互影响的问题,一般采用空场法,它需要在露天坑底部、地下开采第一中段的矿房顶部保留一定厚度境界顶柱。
6) out of boundary iron ore
境界外矿石
1.
With regard to the fact that there exist some out of boundary iron ore in the south of the quarry situated in the Huangbaiyu area,the author of this thesis mainly expounds his opinions and ideas on how to tap internal potentials,to increase investment as early as possible,maximize the utilization of mineral resources properly.
针对采场南部黄柏峪区存在一部分境界外矿石的实际情况,对如何充分挖掘内部潜力,及早加大投入,最大限度地合理开发和充分利用矿产资源的问题阐述了自己的一系列观点和见解。
补充资料：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)
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