Proceedings of the 2023 9th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2023)

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Field test study on deep soft soil reinforcement by vacuum preloading without sand cushion

Authors
Junlong Hu1, 2, 3, *, Yao Xie1, 2, Jing Wang1, 2, 3, Deyong Wang1, 2, 3
1CCCC Fourth Harbor Engineering Institute Co., Ltd, Guangzhou, Guangdong, 510230, China
2Key Laboratory of Environment and Safety Technology of Transportation Infrastructure Engineering, CCCC, Guangzhou, Guangdong, 510230, China
3Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, 519082, China
*Corresponding author. Email: hjunlong@cccc4.com
Corresponding Author
Junlong Hu
Available Online 30 December 2023.
DOI
10.2991/978-94-6463-336-8_10How to use a DOI?
Keywords
vacuum preloading; no-sand cushion; surface settlement; shear strength
Abstract

To evaluate the difference in reinforcement effect between vacuum preloading without sand cushion and conventional vacuum preloading for deep soft foundation, field comparative tests are carried out. The results show that the surface settlement during vacuum preloading without sand cushion is about 17% higher than that of conventional vacuum preloading, and the strength growth after vacuum preloading without sand cushion is about 26% higher than that of conventional vacuum preloading. The study also reveals that the reinforcement uniformity of the sand-free cushion method is weaker than that of the conventional vacuum preloading method. The research results will provide data support for the design and scheme comparison of soft foundation reinforcement by drainage consolidation method in the future.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2023 9th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2023)
Series
Advances in Engineering Research
Publication Date
30 December 2023
ISBN
10.2991/978-94-6463-336-8_10
ISSN
2352-5401
DOI
10.2991/978-94-6463-336-8_10How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Junlong Hu
AU  - Yao Xie
AU  - Jing Wang
AU  - Deyong Wang
PY  - 2023
DA  - 2023/12/30
TI  - Field test study on deep soft soil reinforcement by vacuum preloading without sand cushion
BT  - Proceedings of the 2023 9th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2023)
PB  - Atlantis Press
SP  - 75
EP  - 83
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-336-8_10
DO  - 10.2991/978-94-6463-336-8_10
ID  - Hu2023
ER  -