RESEARCH ON CONSTRUCTION TECHNOLOGY OF UNDERGROUND CONTINUOUS WALL IN CLOSELY PARALLEL EXISTING STATION
With the acceleration of urban development,the construction efficiency of enclosure structure has become a key factor restricting the construction efficiency of underground engineering.Based on the retaining structure of deep foundation pit in Zhongshan No.8 station of Guangzhou metro line 11,this study studies the main reinforcement connection of underground continuous wall and the milling and washing joint of double-wheel milling diaphragm wall,develops a new type of mechanical connection device of steel bar,and forms a combined construction technology of double-wheel milling+locking pipe joint of underground continuous wall,which effectively guarantees the joint quality of underground continuous wall and improves the construction efficiency of double-wheel milling as a whole.It provides a reference for similar engineering cases in the future.
short distance parallelexisting stationdiaphragm wallreinforcement connection
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