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《Port Engineering Technology》 2015-01
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Mechanism Study of Port Soft Base Reinforced by Vacuum Preloading

Shao Xu;CCCC First Harbor Consultants Co., Ltd.;  
Vacuum preloading reinforcement of soft base has been developed and widely used since the technique was put forward by Kjellman in 1952, but there are still various explanations for the mechanism of reinforcement. Relevant monitoring data was used to analyze the changes of water potential, total stress variation before and after consolidation, and surface settlement after vacuum unloading in a soft base reinforced zone of Tianjin port. The research results showed that negative pressure consolidation theory explained vacuum preloading mechanism well, but the theory did not support the phenomena of surface continuous settlement after unloading, which required further study.
【CateGory Index】: U655.54
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