Research on Assembly Integration Technology of Subway Shield Tunnel and Prefabricated Track Bed
In order to build an integrated technology system for the assembly of subway shield tunnel and solve the last key link of prefabricated componentization of shield tunnel and track bed,combined with the new technology of prefabricated track slab,based on the design concept of informatization,intelligentization and prefabrication,a prefabricated track bed component and assembly method is proposed.Two longitudinal connection modes such as connecting type and inserting type of prefabricated track bed components are designed.The lightweight concrete is applied to the prefabricated track bed.The construction equipment integrating the telescopic arm of handling machinery,intelligent identification operating system,grouting equipment system and other functions had been researched and developed in order to maximize the prefabricated assembly of all components of the subway shield tunnel,which improves the level of mechanized operation,reduce the number of on-site workers,reduce the labor intensity,improve the construction efficiency and ensure the construction quality.
subwayshield tunnelassembly integrationprefabricated track bed componentlongitudinal connection
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