EXPERIMENTAL RESEARCH ON HIGH VACUUM DENSIFICATION METHOD TO REINFORCE SATURATED DREDGER FILL FOUNDATION

Gao Youbin; Liu Hanlong; Wang Bo; Xu Shilong

doi:10.13204/j.gyjz201108017

Volume 41 Issue 8

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2011 > 41(8): 64-68

Gao Youbin, Liu Hanlong, Wang Bo, Xu Shilong. EXPERIMENTAL RESEARCH ON HIGH VACUUM DENSIFICATION METHOD TO REINFORCE SATURATED DREDGER FILL FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(8): 64-68. doi: 10.13204/j.gyjz201108017

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Gao Youbin, Liu Hanlong, Wang Bo, Xu Shilong. EXPERIMENTAL RESEARCH ON HIGH VACUUM DENSIFICATION METHOD TO REINFORCE SATURATED DREDGER FILL FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(8): 64-68. doi: 10.13204/j.gyjz201108017

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EXPERIMENTAL RESEARCH ON HIGH VACUUM DENSIFICATION METHOD TO REINFORCE SATURATED DREDGER FILL FOUNDATION

doi: 10.13204/j.gyjz201108017

1.
1. College of Water Conservancy and Environment Engineering,Zhengzhou University,Zhengzhou 450001,China;
2.
2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China;
3.
3. Shanghai Harbor Soft Soil Treatment Engineering Co.Ltd,Shanghai 200092,China

Received Date: 2011-05-04
Publish Date: 2011-08-20

Abstract

Abstract

In this paper,high vacuum densification method reinforced saturated dredger fill foundation in coastal land was introduced.Test results show: Firstly,powerful well-point dewatering can quickly decrease the groundwater table and static pore water pressure before ramming,which can effectively limit growth of super static pore water pressure in the process of ramming.Secondly,dynamic stress caused by different ramming point produces overlapping effect along the depth and the most significant soil strength appear about depth of double to treble hammer diameter.The smaller the ramming point spacing is,the better the reinforcement effect will be.While the ramming point spacing takes little impact on effective reinforcement depth.Thirdly,soil strength and foundation bearing capacity increase greatly,effective reinforcement depth is about 8 m;all these are satisfied for design requirements.It is useful and good to improve to saturated dredger fill foundation with high vacuum densification method in the practice.
- high vacuum densification method,
- dynamic consolidation,
- saturated dredger fill,
- foundation treatment,
- field test

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