工程的最大难点在于深埋长隧洞的勘察、设计与施工。
The most complicated part of the project belongs to the design and construction of these long tunnels at great depths.
结合工程实例，利用水气两相流数学模型计算明流长隧洞的通气量。
An air water two phase flow model for air demand computation for tunnels is developed in this paper.
地应力和地下水问题对深埋长隧洞衬砌的设计及施工具有重大影响。
In-situ stress and groundwater have important influences upon the design and construction of the lining for deep and long tunnels.
巴基斯坦杜伯华水电站工程是一项高水头、长隧洞、引水式水电站工程。
Duber Khwar Hydropower Project is a diversion type power station characterized by high water head and long tunnel.
实践证明，在大断面超长隧洞TBM施工段设置中间施工支洞，是一个成功的经验。
On the whole, this is a good experience for the construction of the tunnel with large cross-section and super length by TBM.
第一期工程方案的关键技术就是如何开凿深埋长隧洞，掘进机的采用使得这一问题得到解决。
The key technology of the first stage project is how to dig tunnels and this is to be solved by adopting excavators.
第一期工程方案的关键技术就是如何开凿深埋长隧洞，掘进机的采用使得这一问题得到解决。
The key technology of the first stage project is how to dig tunnels and this is to be solved by adopting excavators.
应用推荐