摘要
以全风化云母石英片岩浅埋隧道施工中出现掌子面塌方,进一步带动已经成型段初期支护大面积变形进行处理的施工为例,介绍三台阶临时仰拱法在处置塌方和变形隧道中的应用。
Taking for example the construction of treating the large area de- formation of shaped early period support caused by the tunnel face collapse in shallow-depth tunnel construction of all-weathered quartz mica schist, the application of three-step temporary inverted arch method for treating collapse and deformation tunnel was introduced.
出处
《工程建设》
2013年第2期53-56,共4页
Engineering Construction
关键词
隧道
塌方
软弱围岩
三台阶临时仰拱法
tunnel
collapse
weak surrounding rock
three-step temporary in-verted arch method
