The construction process of forked tunnel is very complex because tunnel transition includes double-arch section,small clear spacing section and middle wall transfer from reinforced concrete to rock.

 
  • 分岔隧道连拱段至小净距段的过渡处,中墙由钢筋混凝土变为原岩,施工过程十分复杂。
今日热词
目录 附录 查词历史