钻挖式隧道 Tunnelling shield
（重定向自Tunneling shield）
钻挖式隧道是一种建造隧道的方法，这种方法适用在建造软土地层或含水量很高的地层掘进隧道。盾构（shielding）是用于保护地层稳定的掘进机的防护结构，材质为混凝土、铸铁或钢制。实际上盾构为掘进机提供了工作时的临时支撑。
以全断面隧道钻掘机（TBM）（盾构机）施工，称作全断面隧道钻掘工法。历史上英、法两国正是使用此法来穿越英吉利海峡的海床，修建英法海峡隧道。
Tunneling shield
中文百科
英语百科
Tunnelling shield 钻挖式隧道
（重定向自Tunneling shield）
A tunnelling shield is a protective structure used in the excavation of tunnels through soil that is too soft or fluid to remain stable during the time that it takes to line the tunnel with a support structure of concrete, cast iron, or steel. In effect, the shield serves as a temporary support structure for the tunnel while it is being excavated.
- wound of trachea with complication的意思
- wound of trachea without complication的意思
- wound of trunk with complication的意思
- wound of trunk without complication的意思
- wound of tympanic membrane with complication的意思
- wound of tympanic membrane without complication的意思
- Wound of umbilical cord的意思
- wound of umbilical region with complication的意思
- wound of umbilical region without complication的意思
- wound of unspecified site with complication的意思
- wound of unspecified site without complication的意思
- wound of upper arm with complication的意思
- wound of upper arm without complication的意思
- wound of upper arm with tendon involvement的意思
- wound of upper limb的意思
- wound of upper limb with complication的意思
- wound of upper limb without complication的意思
- wound of upper limb with tendon involvement的意思
- Wound of uterus的意思
- wound of vagina with complication的意思
- Wound of vertebra的意思
- Wound of vessel的意思
- wound of vulva with complication的意思
- wound of wrist的意思
- wound of wrist with complication的意思