Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil Engineering
Marine soft soil foundation is a double-layer foundation structure with a crust layer and soft substratum. Moreover, it is common that there are various forms of drainage. Accordingly, based on Terzaghi’s consolidation theory and the continuous drainage boundary conditions theory of contro...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-05-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/7/5/156 |
| _version_ | 1819062370801025024 |
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| author | Deqiang Chen Junhui Luo Xianlin Liu Decai Mi Longwang Xu |
| author_facet | Deqiang Chen Junhui Luo Xianlin Liu Decai Mi Longwang Xu |
| author_sort | Deqiang Chen |
| collection | DOAJ |
| description | Marine soft soil foundation is a double-layer foundation structure with a crust layer and soft substratum. Moreover, it is common that there are various forms of drainage. Accordingly, based on Terzaghi’s consolidation theory and the continuous drainage boundary conditions theory of controllable drainage conditions, an improved double-layer soil consolidation theory considering continuous drainage boundary conditions was proposed. To improve the computational efficiency and accuracy, the Laplace transform and the Stehfest algorithm was used to deduce the numerical solution of the improved double-layer soil consolidation theory considering continuous drainage boundary conditions and to compile a computer program. Subsequently, the theory was validated and analyzed by the degenerated model of the perfectly permeable boundary conditions and the semi-permeable boundary conditions, respectively, which showed that this theory has higher accuracy. Simultaneously, the analysis of double-layer consolidation settlement under continuous drainage boundary conditions for marine soft soil foundation of Guangxi Binhai Highway was carried on. The result showed that the consolidation settlement calculated by the improved double-layer consolidation theory presented is basically consistent with the field measurement results, and that the correlation coefficient between them is higher. Accordingly, the research results can provide useful basic information for marine soft foundation engineering. |
| first_indexed | 2024-12-21T14:57:42Z |
| format | Article |
| id | doaj.art-1ec360ec2fb845c3befb18d318f9a8e3 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-12-21T14:57:42Z |
| publishDate | 2019-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-1ec360ec2fb845c3befb18d318f9a8e32022-12-21T18:59:42ZengMDPI AGJournal of Marine Science and Engineering2077-13122019-05-017515610.3390/jmse7050156jmse7050156Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil EngineeringDeqiang Chen0Junhui Luo1Xianlin Liu2Decai Mi3Longwang Xu4College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, ChinaGuangxi Communication Design Group Co., LTD, Nanning 530029, ChinaGuangxi Communication Design Group Co., LTD, Nanning 530029, ChinaGuangxi Communication Design Group Co., LTD, Nanning 530029, ChinaGuangxi Communication Design Group Co., LTD, Nanning 530029, ChinaMarine soft soil foundation is a double-layer foundation structure with a crust layer and soft substratum. Moreover, it is common that there are various forms of drainage. Accordingly, based on Terzaghi’s consolidation theory and the continuous drainage boundary conditions theory of controllable drainage conditions, an improved double-layer soil consolidation theory considering continuous drainage boundary conditions was proposed. To improve the computational efficiency and accuracy, the Laplace transform and the Stehfest algorithm was used to deduce the numerical solution of the improved double-layer soil consolidation theory considering continuous drainage boundary conditions and to compile a computer program. Subsequently, the theory was validated and analyzed by the degenerated model of the perfectly permeable boundary conditions and the semi-permeable boundary conditions, respectively, which showed that this theory has higher accuracy. Simultaneously, the analysis of double-layer consolidation settlement under continuous drainage boundary conditions for marine soft soil foundation of Guangxi Binhai Highway was carried on. The result showed that the consolidation settlement calculated by the improved double-layer consolidation theory presented is basically consistent with the field measurement results, and that the correlation coefficient between them is higher. Accordingly, the research results can provide useful basic information for marine soft foundation engineering.https://www.mdpi.com/2077-1312/7/5/156marine soft soildouble-layer foundationconsolidation theorydrainage boundary |
| spellingShingle | Deqiang Chen Junhui Luo Xianlin Liu Decai Mi Longwang Xu Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil Engineering Journal of Marine Science and Engineering marine soft soil double-layer foundation consolidation theory drainage boundary |
| title | Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil Engineering |
| title_full | Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil Engineering |
| title_fullStr | Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil Engineering |
| title_full_unstemmed | Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil Engineering |
| title_short | Improved Double-Layer Soil Consolidation Theory and Its Application in Marine Soft Soil Engineering |
| title_sort | improved double layer soil consolidation theory and its application in marine soft soil engineering |
| topic | marine soft soil double-layer foundation consolidation theory drainage boundary |
| url | https://www.mdpi.com/2077-1312/7/5/156 |
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