Therefore surveying the tunnelcrosssection is the key for rebuilding the existing tunnels.
隧道横断面的测量就成为既有隧道改建的关键。
2
Tunnelcrosssection deformation ellipse reflects the deformation of tunnel segment under external load.
隧道横断面变形椭圆反映隧道承受外部载荷后的变形情况。
3
This article introduced the variable crosssection liner dolly design to solve the tapered long-span lining construction of JiaHua-DaPing tunnel in ChongQing.