Abstract：
There are many technical difficulties in construction of super-deep underground continuous wall. A deep foundation pit project of Tianjin Binhai New District was taken as an example to analyze the key techniques in construction of super-deep underground continuous wall. Discussion was made on the aspects of selection of trenching machine, trenching process, slurry mixing proportion of retaining wall, construction quality control and wall joint, etc., providing references for construction of super-deep underground continuous wall in deep sand stratum and alternative soft and hard stratum of soft ground area.
Zhang Jian-xin,Luan Kai-yun,Wang Chuan-qing et al. Key Construction Technique for Super-Deep Underground Continuous Wall in Foundation Pit with Alternative Soft and Hard Stratum[J]. Architecture Technology, 2016, 47(3): 217-.
