Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft Clay
Low-grade concrete-cored sand-gravel (CCSG) pile composite foundation is a new kind of composite foundation for thick and soft clay ground treatment. An analytical solution was derived for calculating the consolidation process of this composite foundation by considering coefficients of horizontal pe...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2013/795962 |
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| _version_ | 1832566675696779264 |
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| author | Jin Yu Yanyan Cai Zhibo Qi Yunfei Guan Shiyu Liu Bingxiong Tu |
| author_facet | Jin Yu Yanyan Cai Zhibo Qi Yunfei Guan Shiyu Liu Bingxiong Tu |
| author_sort | Jin Yu |
| collection | DOAJ |
| description | Low-grade concrete-cored sand-gravel (CCSG) pile composite foundation is a new kind of composite foundation for thick and soft clay ground treatment. An analytical solution was derived for calculating the consolidation process of this composite foundation by considering coefficients of horizontal permeability in smear zone, the radial flow within the sand-gravel shell, and the impervious property of concrete-cored pile. The results show that Terzaghi’s one-dimensional consolidation solution and the consolidation analytical solution of ordinary composite foundation were special cases of this solution. Curves of the average consolidation degree of the composite foundation under various nondimensional parameters were observed using the program based on the theoretical formula. Meanwhile, a series of in situ measurements including the settlement of pile and soil, the pore water pressure, and the total stress under embankment load were obtained on the CCSG pile composite foundation on a section of Zhenjiang-Liyang highway. The analyzed results show that the new style composite foundation patent technology has many advantages such as small differential postconstruction settlement (differential is not good, small is), reliable quality, high bearing capacity, and stability. And the consolidation of composite foundation is largely affected by the nondimensional parameters. The analytical solution is finally verified with the actual measurement data. |
| format | Article |
| id | doaj-art-51874c6ef1a846a2ae9fdc8ff5cd6d56 |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-51874c6ef1a846a2ae9fdc8ff5cd6d562025-02-03T01:03:33ZengWileyJournal of Applied Mathematics1110-757X1687-00422013-01-01201310.1155/2013/795962795962Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft ClayJin Yu0Yanyan Cai1Zhibo Qi2Yunfei Guan3Shiyu Liu4Bingxiong Tu5Geotechnical Engineering Institute, Huaqiao University, Xiamen 361021, ChinaGeotechnical Engineering Institute, Huaqiao University, Xiamen 361021, ChinaGeotechnical Engineering Institute, Huaqiao University, Xiamen 361021, ChinaGeotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing, Jiangsu 210024, ChinaGeotechnical Engineering Institute, Huaqiao University, Xiamen 361021, ChinaGeotechnical Engineering Institute, Huaqiao University, Xiamen 361021, ChinaLow-grade concrete-cored sand-gravel (CCSG) pile composite foundation is a new kind of composite foundation for thick and soft clay ground treatment. An analytical solution was derived for calculating the consolidation process of this composite foundation by considering coefficients of horizontal permeability in smear zone, the radial flow within the sand-gravel shell, and the impervious property of concrete-cored pile. The results show that Terzaghi’s one-dimensional consolidation solution and the consolidation analytical solution of ordinary composite foundation were special cases of this solution. Curves of the average consolidation degree of the composite foundation under various nondimensional parameters were observed using the program based on the theoretical formula. Meanwhile, a series of in situ measurements including the settlement of pile and soil, the pore water pressure, and the total stress under embankment load were obtained on the CCSG pile composite foundation on a section of Zhenjiang-Liyang highway. The analyzed results show that the new style composite foundation patent technology has many advantages such as small differential postconstruction settlement (differential is not good, small is), reliable quality, high bearing capacity, and stability. And the consolidation of composite foundation is largely affected by the nondimensional parameters. The analytical solution is finally verified with the actual measurement data.http://dx.doi.org/10.1155/2013/795962 |
| spellingShingle | Jin Yu Yanyan Cai Zhibo Qi Yunfei Guan Shiyu Liu Bingxiong Tu Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft Clay Journal of Applied Mathematics |
| title | Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft Clay |
| title_full | Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft Clay |
| title_fullStr | Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft Clay |
| title_full_unstemmed | Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft Clay |
| title_short | Analytical Analysis and Field Test Investigation of Consolidation for CCSG Pile Composite Foundation in Soft Clay |
| title_sort | analytical analysis and field test investigation of consolidation for ccsg pile composite foundation in soft clay |
| url | http://dx.doi.org/10.1155/2013/795962 |
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