EFFECT ANALYSIS OF SOFT FOUNDATION TREATMENT BY VACUUM PRELOADING

Lian Feng; Gong Xiaonan; Zhang Changsheng

doi:10.13204/j.gyjz200710016

Volume 37 Issue 10

Dec. 2014

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Lian Feng, Gong Xiaonan, Zhang Changsheng. EFFECT ANALYSIS OF SOFT FOUNDATION TREATMENT BY VACUUM PRELOADING[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(10): 58-62. doi: 10.13204/j.gyjz200710016

Citation:

Lian Feng, Gong Xiaonan, Zhang Changsheng. EFFECT ANALYSIS OF SOFT FOUNDATION TREATMENT BY VACUUM PRELOADING[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(10): 58-62. doi: 10.13204/j.gyjz200710016

Lian Feng, Gong Xiaonan, Zhang Changsheng. EFFECT ANALYSIS OF SOFT FOUNDATION TREATMENT BY VACUUM PRELOADING[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(10): 58-62. doi: 10.13204/j.gyjz200710016

Citation:

Lian Feng, Gong Xiaonan, Zhang Changsheng. EFFECT ANALYSIS OF SOFT FOUNDATION TREATMENT BY VACUUM PRELOADING[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(10): 58-62. doi: 10.13204/j.gyjz200710016

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EFFECT ANALYSIS OF SOFT FOUNDATION TREATMENT BY VACUUM PRELOADING

doi: 10.13204/j.gyjz200710016

1.
1. College of Civil Engineering,Zhejiang University Hangzhou 310027;
2.
2. Shenzhen Research and Design Institute,China Academy of Railway Sciences Shenzhen 518034

Received Date: 2007-02-26
Publish Date: 2007-10-20

Abstract

Abstract

The vacuum preloading method is used in highway to treat the soft foundation. The average thickness of the siltlayer is about 10m. The vacuum pressure of 80kPa is applied for 150 days to treat the soft clay layer. The settlement is about1. 0m and the average degree of consolidation is over 90%. The physicomechanical propertiesof the soil change greatly aftertreatment, which proves the effect of vacuum preloading in this project.Meanwhile, the horizonal displacement problemcaused by vacuum preloading is also discussed.
- vacuum preloading,
- settlment,
- displacement,
- pore water pressu soil pressure,
- horizontal displacement