steel shield 中文意思是什麼
steel shield
解釋
鋼盾-
Concerning the construction of the shallow cover and the special shallow cover in the tunnel under the special geology conditions, the principle of " to stabilize the slopes with protecting arch ; to strengthen the earth with the pipe - shield support grouting ; to dig a hole shallowly ; to blast slightly ; to use strong supporting structure. " has been adopted to enter the tunnel safely ; in terms of the broken belt, the effective actions such as the pipe - shield support grouting, strengthening the surrounding rock in advance with advanced bolt and steel grids, and so on, are taken to pass the poor conditioned part smoothly
對于特殊地質中的淺理、特淺埋進洞的施工,堅持「護拱穩定邊仰坡,大管棚注漿加固土體,淺打眼、弱爆破、強支護」的原則,做到安全進洞;對于斷層破碎帶,則採取了管棚注漿,超前錨桿預先加固圍巖並結合鋼格柵支撐等有力措施,順利通過了不良地段。
分享友人