At present, there is a lack of construction technology research on the curved middle wall twin-arch tunnel.

曲中墙连拱隧道，是在对当前连拱隧道修建过程中进行总结论证基础上提出的一种新型构造形式。

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There are few research achievements about deformation and damage mechanism for double-arch tunnel with thickness-changing curved middle-wall at home and aboard.

目前，国内外对连拱变厚度曲中墙隧道施工过程中围岩和支护的变形及破坏机理的研究成果很少。

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