The vertical shaft construction technology of cutter head transformation of large diameter shield |
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| Authors: | He Feng Wang Ying Wang Zhenfei Wang Baiquan |
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| Affiliation: | Beijing Underground Diameter Project Department, China Railway Tunnel Group, Beijing 100045, China;Beijing Underground Diameter Project Department, China Railway Tunnel Group, Beijing 100045, China;Beijing Underground Diameter Project Department, China Railway Tunnel Group, Beijing 100045, China;Beijing Underground Diameter Project Department, China Railway Tunnel Group, Beijing 100045, China |
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| Abstract: | Taking vertical shaft construction of cutter transformation of the Beijing underground diameter shield for example, the design and construction of cutter structure transformation under complex boundary conditions for large diameter shield were discussed. Practice about how to ensure the structure safety of the shaft as well as well-coordinated shield construction was explored, and reliable solutions were provided successfully, which can provide reference for similar projects. |
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| Keywords: | large diameter shield shaft transformation complex underground condition |
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