Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)

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ElEMENT ANALYSYS OF CONSOLIDATION OF SOIL UNDER SURCHARGE AND VACUUM PRELOADING

Authors
Xiaodi Song, Xiaoxian Song, Wenhui Dong
Corresponding Author
Xiaodi Song
Available Online September 2012.
DOI
10.2991/emeit.2012.116How to use a DOI?
Keywords
Vacuum preloading,Plain strain FEM, Nonlinearity elastic model, Negative pressure, Pore water pressure, surcharge load, reclaimed soil foundation
Abstract

As an under-consolidated soil, the reclaimed soil consolidation with vacuum preloading is very complex, so are the boundary and initial conditions. Through the analysis of the formation of the reclaimed soil foundation and its consolidation process, the initial pore pressure and the delivery of negative vacuum pressure in the PVDs herein were studied. The negative vacuum pressure was applied in the sand layer and the PVDs elements. The nonlinearity constitutive relation (Duncan-Chang’s model) was employed into the Biot’s consolidation theory, and a plain strain FEM program was coded considering different load conditions, initial conditions and boundary conditions. The behavior of the soft clay consolidation was also analyzed with the program. The surcharge was put into effect in the program. As a result, the program can be used to analyze the reclaimed soil consolidation with pure vacuum preloading method and also vacuum combined with surcharge preloading method. Comparing the calculating results with the observed data, it is confirmed that the developing trend of settlement and pore pressure agree very well with the field result.

Copyright
© 2012, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
Series
Advances in Intelligent Systems Research
Publication Date
September 2012
ISBN
10.2991/emeit.2012.116
ISSN
1951-6851
DOI
10.2991/emeit.2012.116How to use a DOI?
Copyright
© 2012, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Xiaodi Song
AU  - Xiaoxian Song
AU  - Wenhui Dong
PY  - 2012/09
DA  - 2012/09
TI  - ElEMENT ANALYSYS OF CONSOLIDATION OF SOIL UNDER SURCHARGE AND VACUUM PRELOADING
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 557
EP  - 561
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.116
DO  - 10.2991/emeit.2012.116
ID  - Song2012/09
ER  -