1) deep blastholes
深炮眼
2) depth of dynamite hole
炮眼深度
1.
Based on the construction method of Yakou Tunnel of Neikun Railway, this thesis introduces the factors that influence the depth of dynamite holes and present the reasonable circulating footage of tunneling construction under different enclosing conditions by using statistics and analyzing each proce- dure time of every circulating footage in different types of enclosing rock.
结合内昆铁路垭口隧道的施工,论述隧道围岩条件对炮眼深度的影响因素,通过对不同类别围岩每一掘进循环中各工序时间的统计分析,提出了在不同围岩情况下,隧道施工的合理循环进尺。
2.
Author put forward some proposals such as the depth of dynamite hole,shape of underholin,parameter of underholin and control dynamite.
该篇论文从炮眼深度、掏槽爆破、光面爆破几个方面探讨岩巷施工中应注意的一些问题。
4) porthole;embrasure
枪眼; 炮眼
5) blast-hole arrangement
炮眼布置
1.
Computer aided design of the blast-hole arrangement plan in heading tunnel;
掘进巷道炮眼布置计算机辅助设计
2.
According to the ore nature property and actual mining condition in the mine,the problem of high powder ore ratio is solved by modifying the blasting parameter and the blast-hole arrangement,the lump ore ratio and the ore utilization ratio are increased,thus,the mining cost is reduced and economic profit of the mine is increased.
针对我矿矿石的本质特性和开采的实际情况,通过改进采面爆破参数和炮眼布置方式,解决了矿石粉矿率高的问题,有效地提高了矿石块度及煅烧矿石的利用率,降低了采矿成本,增加了企业经济效益。
6) surging perforation
炮眼清洗
1.
The technology uses deep penetration perforation charge with high perforation density and large perforation diameter and surging perforation with greater pressure differential.
它采用高孔密大孔径深穿透射孔弹和大压差抽吸炮眼清洗技术,不仅能提高油井产能,解除近井带污染,还可以改善防砂完井效果。
补充资料：炮眼
1.掩蔽工事的火炮射击口。 2.爆破前在岩石上凿的孔，用来装炸药。
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