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Abstract：Immersed tunnel pipe section is the key link of immersed tunnel project. This paper introduces the prefabrication
systems and application examples of four different concrete pipe sections，combined with the Hong Kong-Zhuhai-Macao
immersed tunnel project，the comparison and choice of the dry-dock prefabrication and the factory prefabrication are mainly
discussed. At the end，it gives some suggestions to the construction of Hong Kong-Zhuhai-Macao immersed tunnel pipe pre原
fabrication.
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