tunnel maintenance

application of technology of bolt-shotcreting and bolt-injecting in tunnel maintenance

锚喷锚注技术在巷道修护中的应用

a brief introduction to management over bridge and tunnel maintenance

桥隧维修养护管理工作初探

design and implementation of highway tunnel maintenance mis

公路隧道养护管理信息系统的设计与实现

application of anchor net support for tunnel maintenance

锚网支护在巷道维修中的应用

section measurement is the most direct method for acquiring monitoring data of an operating tunnel in tunnel maintenance tasks.

隧道检测中之断面量测，是营运中隧道之维护管理作业最直接的监测数据之一；

But due to the high proportion of bridge and tunnel, the poor transportation, a lot of traction transformers of AT power supply and missive civil engineering, it is more difficult to set up stations and operation maintenance for the electrified railway in mountain area.

但对于山区电气化铁路来说，由于其桥隧的比例高，交通不便，AT供电方式牵引变电所设施较多，土建工程较大，运行维护难度也较大。

This leads to the maintenance tunnel underneath the command bunker.

这个会带领我们到司令部下面的养护地道.