super long tunnel

A Study on Design Program of East Qinling Super-long Tunnel of Xi'an-Nanjing Railway

西安南京铁路东秦岭特长隧道设计方案的研究

According to the distributing characteristic of highway pivotal infrastructure, including super large highway bridge and long-span and extra-long highway tunnel etc, aimed at the traffic safety management, the concept of Dumbbell Road Network ( DRN) is provided, and its boundary algorithm is especially discussed.

针对公路重大交通基础设施（如特大桥、长大隧道等）的分布特征，从交通安全管理的角度，提出哑铃型路网的概念，重点对其路网边界算法进行探讨。

Study on TBM boring technique for construction of super long tunnel

特长隧道TBM掘进施工技术研究

Study on Long Term Warning Value of Super Large Section Tunnel

特大断面隧道长期运营预警值的研究

Longtan Tunnel is a super long tunnel, about 8.

龙潭隧道系沪蓉国道主干线宜昌~恩施公路上的特长隧道, 长约8.