Numerical Study: Influences of Local Radial Consolidation for Soft Clay
- Authors: Zhou Y.1, Khoteja D.1, Xu F.2
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Affiliations:
- Institute of Geotechnical and Underground Engineering, Huazhong University of Science and Technology
- School of Civil Engineering, Central South University
- Issue: Vol 56, No 3 (2019)
- Pages: 157-163
- Section: Soil Mechanics
- URL: https://journal-vniispk.ru/0038-0741/article/view/244233
- DOI: https://doi.org/10.1007/s11204-019-09584-9
- ID: 244233
Cite item
Abstract
The permeability reduction behavior induced by local consolidation around a prefabricated vertical drain under equal vertical strain condition was investigated by finite element analysis (FEA) using a unit cell model. Taylor's equation was employed to consider the variation of permeability with the void ratio. The results of FEA indicate that at the early stage of consolidation, the ratio of permeability at the cell periphery and adjacent to the drain is about 8 for soft clay. Further, we compared the average degree of consolidation between the results of FEA and the analytical results from Hansbo's solution for radial consolidation. This showed that, without considering the influences of local consolidation, the analytical solution will overestimate the rate of consolidation.
About the authors
Yang Zhou
Institute of Geotechnical and Underground Engineering, Huazhong University of Science and Technology
Email: fangxu@csu.edu.cn
China, Wuhan
Dibangar Khoteja
Institute of Geotechnical and Underground Engineering, Huazhong University of Science and Technology
Email: fangxu@csu.edu.cn
China, Wuhan
Fang Xu
School of Civil Engineering, Central South University
Author for correspondence.
Email: fangxu@csu.edu.cn
China, Changsha
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