...双连拱公路隧道；衬砌裂缝；衬砌裂缝成因；裂缝防治措施 [gap=1821]Key words：tunnel engineering；twin-arc highway tunnels；lining crack；cause of lining cracks；crack prevention ..
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所得结论对公路双连拱隧道的建设有重要的工程指导意义。
The conclusions we draw can also play a directive role in highway double-arc tunnel construction.
近年来，双连拱隧道以其新颖的结构形式和自身的优点被广泛应用于公路隧道的建设中。
In recent years, the double-arch tunnel has been widely used in vehicular tunnel construction, which has new structural style and many other advantages.
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