摘要
在长大隧道施工中,为了保证施工安全、稳定、快速地进行,可在软弱围岩、断层破碎带、岩堆等不良地质地段进行超前预支护。介绍了大管棚超前支护施工技术。
For the sake of the assurance construction safety, stabilize and running quickly,it carries on forepoling around the rock in the flabbiness and the fault crushed zone in the process of big-long tunnel construction. According to the past tunnel construction, the pre-grounted big tube canopy is adopted.
出处
《铁道建筑技术》
2009年第5期126-129,共4页
Railway Construction Technology
关键词
隧道
超前预支护
长大管棚
tunnel
forepoling
big-long tube canopy
