Improved vacuum preloading method for consolidation of dredged clay-slurry fill

Jun Wang; Yuanqiang Cai; Jianjun Ma; Jian Chu; Hongtao Fu; Peng Wang; Yawei Jin

doi:10.1061/(ASCE)GT.1943-5606.0001516

Improved vacuum preloading method for consolidation of dredged clay-slurry fill

Jun Wang, Yuanqiang Cai, Jianjun Ma, Jian Chu^*, Hongtao Fu, Peng Wang, Yawei Jin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

198 Citations (Scopus)

Abstract

An improved vacuum preloading method was developed to consolidate clay-slurry fill that is hydraulically placed in seawater for land reclamation. This method adopted both a vacuum and an air-pressurizing system. In the vacuum system, a new connector to connect each prefabricated vertical drain (PVD) directly to a horizontal vacuum pipe is used in lieu of a horizontal sand blanket. In the air-pressurizing system, compressed air is injected into the soil to accelerate consolidation. Field pilot tests using both the improved and the existing vacuum preloading systems were carried out at the same site. The testing data showed that better consolidation results were achieved using the improved vacuum preloading method.

Original language	English
Article number	06016012
Journal	ASCE J Soil Mech Found Div
Volume	142
Issue number	11
DOIs	https://doi.org/10.1061/(ASCE)GT.1943-5606.0001516
Publication status	Published - Nov 1 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 American Society of Civil Engineers.

ASJC Scopus Subject Areas

Geotechnical Engineering and Engineering Geology
General Environmental Science

Keywords

Consolidation
Land reclamation
Pore water pressure
Soil improvement
Vacuum preloading

Access to Document

10.1061/(ASCE)GT.1943-5606.0001516

Cite this

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abstract = "An improved vacuum preloading method was developed to consolidate clay-slurry fill that is hydraulically placed in seawater for land reclamation. This method adopted both a vacuum and an air-pressurizing system. In the vacuum system, a new connector to connect each prefabricated vertical drain (PVD) directly to a horizontal vacuum pipe is used in lieu of a horizontal sand blanket. In the air-pressurizing system, compressed air is injected into the soil to accelerate consolidation. Field pilot tests using both the improved and the existing vacuum preloading systems were carried out at the same site. The testing data showed that better consolidation results were achieved using the improved vacuum preloading method.",

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Improved vacuum preloading method for consolidation of dredged clay-slurry fill

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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