Mechanism of using vacuum preloading method in improving soft clay layers

Yan Shuwang; Feng Xiaowei; Chu Jian

doi:10.1061/41025(338)33

Mechanism of using vacuum preloading method in improving soft clay layers

Yan Shuwang^*, Feng Xiaowei, Chu Jian

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Citations (Scopus)

Abstract

The vacuum preloading method has been used in a number of countries for soil improvement and land reclamation works. Prefabricated vertical drains are normally used together with the vacuum preloading technique. When a surcharge load larger than the vacuum load is required, a combined vacuum and fill surcharge preloading method is also adopted. The mechanism of the vacuum preloading method is explained by examining the pore water pressure and effective stress changes in both the fill surcharge and vacuum preloading cases. Two case studies are presented to illustrate the applications of the vacuum preloading method and the combined vacuum and fill surcharge preloading method. Discussions on the effective depth of the vacuum preloading method and the methods to estimate the degree of consolidation are also made. Copyright ASCE 2009.

Original language	English
Title of host publication	Advances in Ground Improvement
Subtitle of host publication	Research to Practice in the United States and China - Proceedings of the 2009 US-China Workshop on Ground Improvement Technologies
Pages	308-317
Number of pages	10
Edition	188
DOIs	https://doi.org/10.1061/41025(338)33
Publication status	Published - 2009
Externally published	Yes
Event	Advances in Ground Improvement: Research to Practice in the United States and China - 2009 US-China Workshop on Ground Improvement Technologies - Orlando, FL, United States Duration: Mar 14 2009 → Mar 14 2009

Publication series

Name	Geotechnical Special Publication
Number	188
ISSN (Print)	0895-0563

Conference

Conference	Advances in Ground Improvement: Research to Practice in the United States and China - 2009 US-China Workshop on Ground Improvement Technologies
Country/Territory	United States
City	Orlando, FL
Period	3/14/09 → 3/14/09

ASJC Scopus Subject Areas

Civil and Structural Engineering
Architecture
Building and Construction
Geotechnical Engineering and Engineering Geology

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10.1061/41025(338)33

Cite this

Shuwang, Y., Xiaowei, F., & Jian, C. (2009). Mechanism of using vacuum preloading method in improving soft clay layers. In Advances in Ground Improvement: Research to Practice in the United States and China - Proceedings of the 2009 US-China Workshop on Ground Improvement Technologies (188 ed., pp. 308-317). (Geotechnical Special Publication; No. 188). https://doi.org/10.1061/41025(338)33

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title = "Mechanism of using vacuum preloading method in improving soft clay layers",

abstract = "The vacuum preloading method has been used in a number of countries for soil improvement and land reclamation works. Prefabricated vertical drains are normally used together with the vacuum preloading technique. When a surcharge load larger than the vacuum load is required, a combined vacuum and fill surcharge preloading method is also adopted. The mechanism of the vacuum preloading method is explained by examining the pore water pressure and effective stress changes in both the fill surcharge and vacuum preloading cases. Two case studies are presented to illustrate the applications of the vacuum preloading method and the combined vacuum and fill surcharge preloading method. Discussions on the effective depth of the vacuum preloading method and the methods to estimate the degree of consolidation are also made. Copyright ASCE 2009.",

author = "Yan Shuwang and Feng Xiaowei and Chu Jian",

year = "2009",

doi = "10.1061/41025(338)33",

language = "English",

isbn = "9780784410257",

series = "Geotechnical Special Publication",

number = "188",

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booktitle = "Advances in Ground Improvement",

edition = "188",

note = "Advances in Ground Improvement: Research to Practice in the United States and China - 2009 US-China Workshop on Ground Improvement Technologies ; Conference date: 14-03-2009 Through 14-03-2009",

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Shuwang, Y, Xiaowei, F & Jian, C 2009, Mechanism of using vacuum preloading method in improving soft clay layers. in Advances in Ground Improvement: Research to Practice in the United States and China - Proceedings of the 2009 US-China Workshop on Ground Improvement Technologies. 188 edn, Geotechnical Special Publication, no. 188, pp. 308-317, Advances in Ground Improvement: Research to Practice in the United States and China - 2009 US-China Workshop on Ground Improvement Technologies, Orlando, FL, United States, 3/14/09. https://doi.org/10.1061/41025(338)33

Mechanism of using vacuum preloading method in improving soft clay layers. / Shuwang, Yan; Xiaowei, Feng; Jian, Chu.
Advances in Ground Improvement: Research to Practice in the United States and China - Proceedings of the 2009 US-China Workshop on Ground Improvement Technologies. 188. ed. 2009. p. 308-317 (Geotechnical Special Publication; No. 188).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - The vacuum preloading method has been used in a number of countries for soil improvement and land reclamation works. Prefabricated vertical drains are normally used together with the vacuum preloading technique. When a surcharge load larger than the vacuum load is required, a combined vacuum and fill surcharge preloading method is also adopted. The mechanism of the vacuum preloading method is explained by examining the pore water pressure and effective stress changes in both the fill surcharge and vacuum preloading cases. Two case studies are presented to illustrate the applications of the vacuum preloading method and the combined vacuum and fill surcharge preloading method. Discussions on the effective depth of the vacuum preloading method and the methods to estimate the degree of consolidation are also made. Copyright ASCE 2009.

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Mechanism of using vacuum preloading method in improving soft clay layers

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