This paper introduces the structural characteristics working principle and main parts structural and control design of the SDX big splint freeze tunnel line.
本文介绍了SDX大托板速冻隧道线的结构特点，工作原理及主要部件的结构设计。
By adopting the SES software of the Ministry of Communications of USA, a model was built and computation was carried out for the tunnel ventilation optimizing project design of Xi an Metro Line 2.
通过使用美国交通部SES软件，对西安地铁2号线隧道通风的优化方案设计进行建模计算。
In line with the rapid development of technology, modern tunnel engineering has made a tremendous progress in both structural design and construction technologies.
随着科技的不断进步，现代隧道无论是从结构计算，还是从施工方法都较以前有了较大的飞跃。
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