During construction of the middle drift of a multi-arch tunnel, collapse accident occurred.
某连拱隧道在中导洞施工时出现坍方。
Combined with the construction experience, the paper discussed the key technology of double multi-arch tunnel construction for reference.
结合近年来的施工经验，对双连拱隧道施工主要控制点的关键技术进行阐述，供今后的工程施工参考。
In this article, authors state construction technology study achievements gained in construction of the Huxiuling double lines multi-arch tunnel and their application.
本文就修建岵岫岭双线连拱隧道过程中开展的施工技术研究成果和应用情况做了介绍。
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