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。
The study of construction stimulation and control of multi-arch was run to solve tunnel dynamics construction mechanics.
通过对双连拱隧道施工工艺及施工控制的研究，拟解决隧道动态施工力学问题。
The paper discusses the construction techniques of a group of multi-arch tunnels in a project of Guangzhou metro Line No.
利用广州地铁三号线某一工程实例，对连拱隧道群施工工法进行探讨。
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