Numerical analyses of embankments on PVD improved soft clays |
| |
| Authors: | Abdulazim Yildiz |
| |
| Affiliation: | 1. Monash University, Department of Civil Engineering, 23 College Walk, Wellington Road, Clayton, Vic. 3800, Australia;2. GeoEngineering Centre at Queen''s-RMC, Queen''s University, Ellis Hall, Kingston, Ontario, Canada K7L 3N6;3. Golder Associates Pty. Ltd., Building 7, Botanicca Corporate Park, 570–588 Swan Street, Richmond, Vic. 3121, Australia;1. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310027, PR China;2. College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 325035, PR China;1. College of Architecture and Civil Engineering, Wenzhou University, Chashan University Town, Wenzhou, 325035, China;2. Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation, Wenzhou University, Zhejiang, Wenzhou, China;3. Innovation Center of Tideland Reclamation and Ecological Protection, Wenzhou University, Wenzhou, China;4. College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou, 310014, China;5. Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou, China;6. School of Engineering, University of Warwick, Coventry, CV4 7AL, United Kingdom;7. Architectural, Surveying & Mapping Engineering, Jiangxi University of Science and Technology, No. 99, Hongqi Road, Ganzhou, China;1. Department of Civil Engineering and Architecture, Saga University, Japan;2. College of Architecture and Civil Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China;3. Department of Civil and Environmental Engineering, College of Engineering, Shantou University, Shantou, Guangdong 515063, China |
| |
| Abstract: | In this paper, three-dimensional behaviour of an embankment on soft soils incorporating prefabricated vertical drains is analysed with finite element method using a recently proposed constitutive model, namely S-CLAY1S. The constitutive model accounts for plastic anisotropy, interparticle bonding and degradation of bonds. The numerical simulations show that neglecting effects of anisotropy and destructuration may lead to inaccurate predictions of soft clay response. The same problem is also analysed under two-dimensional plane strain conditions. Axisymmetric vertical drains are converted into equivalent plane strain conditions using three different numerical matching techniques purposed in the literature. In order to validate these matching techniques, the 2D equivalent plane strain results are compared with the results of 3D analysis. It is shown that these numerical matching techniques accurately predict the consolidation behaviour of an embankment on PVD improved soft clays and provide a useful tool for engineering practice. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
