Estimation of Influence Scope of Lateral Displacement of Soft Ground under Vacuum Pressure with PVD
Joint Authors
Wang, Jun
Liu, Jingyun
Fu, Hongtao
Cai, Yuanqiang
Hu, Xiuqing
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-19
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The application of vacuum pressure to a treated area not only induces vertical settlement and inward lateral displacement but also causes the formation of tension cracks near the ground surface.
In general, the strain method is applied to calculate the lateral displacement at the boundary of a treated area; however, the influence scope of lateral displacement has not yet been presented.
Based on the in situ data of soft clayey soil foundation treated by vacuum consolidation, lateral displacement was estimated in the influence scope in this study.
To calculate the influence scope of lateral displacement induced by vacuum pressure, the ratio of the lateral displacement within the influence scope to the ground surface settlement under the centre of the treated area is defined as the maximum value of the lateral displacement (ELD) within the influence scope.
This paper proposes a direct relationship between ELD and the distance from the treated area boundary (Lx), considering the length of the prefabricated vertical drain.
In addition, the FEA (finite-element analysis) is used to simulate the process of vacuum preloading to reinforce soft soil foundation.
The influence scope simulated is almost close to the calculated value Lx.
Accordingly, the safety distance between the boundary of the treated area and the surrounding building can be estimated when the soft soil foundation is consolidated by using a vacuum preloading method.
American Psychological Association (APA)
Liu, Jingyun& Fu, Hongtao& Wang, Jun& Cai, Yuanqiang& Hu, Xiuqing. 2018. Estimation of Influence Scope of Lateral Displacement of Soft Ground under Vacuum Pressure with PVD. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1116723
Modern Language Association (MLA)
Liu, Jingyun…[et al.]. Estimation of Influence Scope of Lateral Displacement of Soft Ground under Vacuum Pressure with PVD. Advances in Civil Engineering No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1116723
American Medical Association (AMA)
Liu, Jingyun& Fu, Hongtao& Wang, Jun& Cai, Yuanqiang& Hu, Xiuqing. Estimation of Influence Scope of Lateral Displacement of Soft Ground under Vacuum Pressure with PVD. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1116723
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116723