tunneling compressed air

compressed air tunnelling method

压缩空气开挖隧道法

A hand - held machine for drilling rock and breaking up pavement, operated by compressed air.

手挂式风钻，轻型凿岩机通过压缩空气运转的钻岩石、挖隧道的手持机器

poling board method (of funnelling)

(开挖隧道时的)插板法

Numerical simulation on suitable method of double-arched tunnel in partial press

偏压连拱隧道合理开挖方法的数值模拟研究

The paper introduces the excavation of a tunnel which is adjacent to an existing electrified railway tunnel, the monitoring, protection and strengthening of the existing tunnel.

介绍一座与既有电气化隧道相邻隧道的开挖、有隧道监测及其防护加固方法。

On the shifting sand tunnel excavation in mined zones and the supporting technique

煤矿采空区流沙隧道开挖与支护技术

compressed air line breathing apparatus

压缩空气管道呼吸装置

Analysis of Space-time Effect for Displacement Relief of Strata Induced by Excavation Process of Shallow Embedded Tunnel;

浅埋暗挖隧道开挖引起地层变位时空效应分析

Cut and cover method

明挖覆盖法（隧道）

Taking About Method Of Tunnel Excavation In Loessial Region

黄土地区公路隧道施工开挖方法浅谈

Discussion on New Tunnel Excavation Method Used in Soft Ground

软弱地质条件下隧道开挖新方法探讨

"The bends may affect persons who must work in compressed air, as in constructing a tunnel under a river. Skin divers and deep sea divers may also suffer from this illness."

减压病还可能影响必须在压缩空气中工作的人，如建筑海底隧道者。潜水员也可能患这种病

ln a tunnel, lots of air gets pushed out the exit and boom!

在隧道的出口那里压着大量的空气

Optimal Analysis of Excavation Sequence and the Structure of Shallow, Unsymmetrical Pressure, Twin-arch Tunnels;

浅埋偏压连拱隧道开挖顺序与结构优化分析

Research of Bias Tunnel Excavation Sequence and Supporting Structure Optimization

偏压地形隧道开挖顺序及支护结构优化研究

Simulation on different excavation construction of the shallow-buried tunnel under the uneven rock pressure

浅埋、偏压隧道开挖施工方案的仿真分析

Research on the Long Tunnel and Tunnel Group s Aerodynamic Algorithm and Its Application;

长大隧道、隧道群空气动力效应算法研究及应用

Optimization of the Structual Design and the Excavation Scheme of Road Tunnel;

公路隧道结构设计方法及开挖方案的优化