Experimental Study on Dewatering Dredged Clay with Ventilating Vacuum Method

Feng Ji; Jian Wen Ding; Zhen Shun Hong; Yue Gui

doi:10.4028/www.scientific.net/AMR.261-263.1650

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 261-263Experimental Study on Dewatering Dredged Clay with...

Experimental Study on Dewatering Dredged Clay with Ventilating Vacuum Method

Abstract:

A series of model tests were performed on dredged clay with high initial water contents for investigating the dewatering behavior by ventilating vacuum method (VVM). The results shows that the surface water separated from dredged clay can be quickly removed by VVM in which a new pattern PVD is used. In addition, the method also speeds up the deposition of dredged clay. The volume of dredged clay with an initial water content of 4.5 times liquid limit decreases by 50 percent within two months. This paper also investigated the spatial distribution law of water content by TDR method. It is found that the drainage distance of PVD is about 0.3-0.4m.

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Periodical:

Advanced Materials Research (Volumes 261-263)

Pages:

1650-1654

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.261-263.1650

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Online since:

May 2011

Authors:

Feng Ji, Jian Wen Ding, Zhen Shun Hong, Yue Gui

Keywords:

Dewatering, Dredged Clay, New Pattern PVD, Surface Water, Ventilating Vacuum Method, Water Content

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