Consolidation of soft clay around vertical drain
Vertical drains combined with precompression by surcharge loading is an effective soil-improvement method and has gained wide interest and recognition. The use of vertical drains in soft clayey soils can (a) shorten the drainage paths and accelerate the primary consolidation settlements; (b) decreas...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
2008
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| Online Access: | http://hdl.handle.net/10356/11962 |
| _version_ | 1826110597656215552 |
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| author | Nie, Xiao Yan. |
| author2 | Teh, Cee Ing |
| author_facet | Teh, Cee Ing Nie, Xiao Yan. |
| author_sort | Nie, Xiao Yan. |
| collection | NTU |
| description | Vertical drains combined with precompression by surcharge loading is an effective soil-improvement method and has gained wide interest and recognition. The use of vertical drains in soft clayey soils can (a) shorten the drainage paths and accelerate the primary consolidation settlements; (b) decrease time required for preloading before foundation construction; (c) increase shear strength of the soil and improve the stability of structure. In this study a numerical method has been developed for simulating the variation of soil permeability during the consolidation process and predicting the performance of vertical drains by taking this variation into account. In addition to the traditional Carey's law, non-Darcian flow proposed by Hansbo, was also incorporated in this study. The inclusion of non-Darcian flow adds greater versatility to the program and enables an assessment of the effect of non-Darcian flow on the consolidation process if the flow obeys such a nonlinear rule. |
| first_indexed | 2024-10-01T02:37:04Z |
| format | Thesis |
| id | ntu-10356/11962 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:37:04Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/119622023-03-03T19:07:34Z Consolidation of soft clay around vertical drain Nie, Xiao Yan. Teh, Cee Ing School of Civil and Structural Engineering DRNTU::Engineering::Civil engineering::Geotechnical Vertical drains combined with precompression by surcharge loading is an effective soil-improvement method and has gained wide interest and recognition. The use of vertical drains in soft clayey soils can (a) shorten the drainage paths and accelerate the primary consolidation settlements; (b) decrease time required for preloading before foundation construction; (c) increase shear strength of the soil and improve the stability of structure. In this study a numerical method has been developed for simulating the variation of soil permeability during the consolidation process and predicting the performance of vertical drains by taking this variation into account. In addition to the traditional Carey's law, non-Darcian flow proposed by Hansbo, was also incorporated in this study. The inclusion of non-Darcian flow adds greater versatility to the program and enables an assessment of the effect of non-Darcian flow on the consolidation process if the flow obeys such a nonlinear rule. Master of Engineering (CSE) 2008-09-25T06:33:37Z 2008-09-25T06:33:37Z 2000 2000 Thesis http://hdl.handle.net/10356/11962 en Nanyang Technological University 355 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering::Geotechnical Nie, Xiao Yan. Consolidation of soft clay around vertical drain |
| title | Consolidation of soft clay around vertical drain |
| title_full | Consolidation of soft clay around vertical drain |
| title_fullStr | Consolidation of soft clay around vertical drain |
| title_full_unstemmed | Consolidation of soft clay around vertical drain |
| title_short | Consolidation of soft clay around vertical drain |
| title_sort | consolidation of soft clay around vertical drain |
| topic | DRNTU::Engineering::Civil engineering::Geotechnical |
| url | http://hdl.handle.net/10356/11962 |
| work_keys_str_mv | AT niexiaoyan consolidationofsoftclayaroundverticaldrain |