Construction Control Technology for Diaphragm Retaining Wall of Tianjin Metro North-station Deep Foundation Pit

In deep foundation pit construction,diaphragm retaining wall structure not only guarantees the safety and stability of foundation pit itself but also control surrounding stratum displacement and groundwater leakage of deep foundation pit effectively.So it is the key to guarantee foundation pit,surrounding buildings and pipelines.Diaphragm retaining wall construction of Tianjin Metro Line 3 North-station deep foundation pit is taken as an example to summarize main construction control technology of diaphragm retaining wall,which will provide the reference for the similar projects.