Shield hole-drilling apparatus and hole-drilling construction method thereof

2008 
The invention discloses a shield-entry receiving device which is an assembled steel structure with a cavity; the receiving device is hermetically arranged around a shield-entry reservation hole on the space enclosing structure of a foundation pit; a slurry pressurizing pipeline accessing to the cavity is arranged on the receiving device. The invention also discloses an entry construction method by using the shield-entry receiving device. Since the shield-entry receiving device is provided with the sealed cavity, after adding water, slurry or compressed air into the cavity by the slurry pressurizing pipeline, pressure environment, the pressure of which is balanced with that of outside water and soil is formed in the receiving device during the shield entry. Therefore, the application of the shield-entry receiving device and the method thereof for the shield-entry construction has the advantages of lowering cost, reducing safety hazards and realizing the quick and safe entry of the shield, and the shield-entry receiving device and the method thereof can be applied to the construction of the shield of large tunnels.
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