不同围岩条件下大跨隧道的施工方案探讨

Discussion on the Construction Plan of Big Span Tunnel with Different Country Rock

以内昆线上三座大跨车站隧道修建为对象 ,从方案比选、数值计算。

Taking the three big span tunnels in the Nei-Kun line as the examples, it analyses and compares the multi-plan of construction of big span tunnel on the plan selection, calculation and effect of construction.