Taking Changjiang tunnel project in Shanghai as the background, this presentation systematically describes critical techniques of structure design on super large, extra long tunnel.

本报告以上海长江隧道为工程背景，系统地阐述了超大特长隧道结构设计的关键技术。

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The primary support and the second lining of large-spanned tunnel have endured different surrounding rock stress because of the influence of structure and span of tunnel.

大拱隧道受结构和跨度的影响，其初期支护与二次衬砌各自承受不同的围岩压力。

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Taking the membrane structure roof of Hangzhou Swimming Stadium for example, wind load characters on large slope roof were studied by wind tunnel simulation.

以杭州游泳馆膜结构屋顶为例，本文通过风洞模拟实验的方法研究了大坡度膜结构屋面的风荷载特性。

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