洞室开挖稳定分析、如何建设隧洞--毕业论文外文文献翻译(四篇)

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Tunnel
Stability Analysis of Tunnel Excavation
Aspillway tunnel for an embankment dam is to be constructed in a poor quality
sandstone. The excavated diameter of the tunnel is about
13m and the cover over the roof is 8m. The tunnel is to have a 1.3 m thick un-reinforced concrete lining
and,after placement of
this lifting, a 28 to high portion of the rockfill dam will he over the constructed tunnel.
The questions to be addressed are:
(1)What support is required in order to excavate the tunnel saf ...

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关键词：毕业论文 文献翻译 外文文献 constructed placement