tunnel invert的意思|示意

By adopting some technology of advanced detection, adding temporary invert, sleeve valve pipe and lock foot bolts, the construction of the tunnel is completed safely and successfully.

暗挖区间隧道通过采用超前探测、增设临时仰拱、袖阀管、锁脚锚管等技术措施，安全、顺利完成了北四环路和北辰桥段的施工。

A simulation of dynamic forces acting on invert prefabricates in TBM construction tunnel is made with surrounding rock-structure model by using ANSYS software.

运用计算软件ANSYS，采用围岩—结构模式，对TBM施工隧道仰拱预制块进行模拟动态施工的受力计算研究。