1) efficiency of excavation
掘进效果
2) excavation efficiency
掘进工效
3) unnelling performancet
掘进效能
5) tunneling efficiency
掘进效率
1.
This optimization has brought about real increase in tunneling efficiency,thus solved the problem of tunneling in the unstable coal seam.
工程实践中取消了现有的小断面工钢支护,采用了大断面U型钢支护,真正实现掘进效率的提高,解决了豫西地区不稳定煤层巷道掘进的难题。
6) advancing effect
掘进效应
1.
For analyzing the influence of the confinement loss,the deformation measurements widely used in tunneling engineering are investigated;and the advancing effect function is particularly proposed to examine the alterations of deformation and stresses of rock mass around tunnel.
针对约束损失的计算与影响性分析,以隧道工程广泛使用的变形量测收敛资料为依据,以掘进效应函数探讨隧道因前进开挖引致工作面围岩变形与应力变化,并以反计算方法评估约束损失分布情况,进而应用于台湾八卦山公路隧道工程案例分析,以了解实际掘进效应的影响。
补充资料：半煤岩巷掘进
见煤巷掘进。
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