摘要
文章通过对软弱破碎围岩浅埋双线或多线隧道施工中两种临时仰拱形式在施工各阶段的作用进行了分析和对比 ,提出了临时仰拱设置形式以水平直线型为佳的观点 ,并对兼作弃碴运输通道的临时仰拱的设置形式提出了应预留上拱度的观点。文章内容对隧道施工中的临时仰拱设置具有一定的参考意义。
After analyzed and compared the functions of two kinds of temporary inverts in the various stage of construction of double-track or multiple-track shallow tunnels embedded in weak and fractured surrounding rocks, the author suggests the horizontal and straight invert to be the best one. In addition, a camber is suggested for the temporary inverts concurrently used as muck transportation passage. Contents of the paper can be referred to by similar projects.
出处
《现代隧道技术》
EI
2003年第6期21-23,共3页
Modern Tunnelling Technology
关键词
软弱围岩
浅埋隧道
临时仰拱
Soft and weak surrounding rock
Shallow tunnels
Temporary invert
