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A platform for research: civil engineering, architecture and urbanism
Comparative Study on Settlement Analysis of Shallow Foundation for Cohesive Soil
https://orcid.org/http://orcid.org/0000-0002-4540-5461
The surcharge due to building and roads affects the subsurface and ground behaviour and causes the settlement problem. The settlement problem is more effective when the structure is built on expansive soil. Because of settlement resulting damage and repair work may cost a considerable high amount, an accurate modelling of subsurface condition and prediction of ground-structure interaction can help to avoid such a foundation problem. In this study, settlement analysis by using conventional method and two-dimensional finite element (2D FEM) modelling are both carried out and the results are compared. Settlement analysis by using the conventional approach is performed for the particular geometry by using Terzaghi’s one-dimensional consolidation theory. The compressibility coefficient involved in the formula is determined from consolidation test data. Thereafter settlement results are presented as settlement prediction on-time rate for comparison purpose. Then after 2D FEM analysis is performed for the same soil data and soil model is generated using FEM computer program. The results obtained from the analysis are compared with conventional method results. Terzaghi’s equation, which is used in the conventional approach, is a logarithm function whereas 2D FEM analysis based on linear function according to Hook’s law of linear elastic stress–strain relationship. Three different soil layers, which have different E and γ value determined for each layer and thickness of each layer is considered. The number variable affecting the results restrained comparison between conventional and 2D FEM settlement to be qualitative.
Comparative Study on Settlement Analysis of Shallow Foundation for Cohesive Soil
https://orcid.org/http://orcid.org/0000-0002-4540-5461
The surcharge due to building and roads affects the subsurface and ground behaviour and causes the settlement problem. The settlement problem is more effective when the structure is built on expansive soil. Because of settlement resulting damage and repair work may cost a considerable high amount, an accurate modelling of subsurface condition and prediction of ground-structure interaction can help to avoid such a foundation problem. In this study, settlement analysis by using conventional method and two-dimensional finite element (2D FEM) modelling are both carried out and the results are compared. Settlement analysis by using the conventional approach is performed for the particular geometry by using Terzaghi’s one-dimensional consolidation theory. The compressibility coefficient involved in the formula is determined from consolidation test data. Thereafter settlement results are presented as settlement prediction on-time rate for comparison purpose. Then after 2D FEM analysis is performed for the same soil data and soil model is generated using FEM computer program. The results obtained from the analysis are compared with conventional method results. Terzaghi’s equation, which is used in the conventional approach, is a logarithm function whereas 2D FEM analysis based on linear function according to Hook’s law of linear elastic stress–strain relationship. Three different soil layers, which have different E and γ value determined for each layer and thickness of each layer is considered. The number variable affecting the results restrained comparison between conventional and 2D FEM settlement to be qualitative.
Comparative Study on Settlement Analysis of Shallow Foundation for Cohesive Soil
https://orcid.org/http://orcid.org/0000-0002-4540-5461
The surcharge due to building and roads affects the subsurface and ground behaviour and causes the settlement problem. The settlement problem is more effective when the structure is built on expansive soil. Because of settlement resulting damage and repair work may cost a considerable high amount, an accurate modelling of subsurface condition and prediction of ground-structure interaction can help to avoid such a foundation problem. In this study, settlement analysis by using conventional method and two-dimensional finite element (2D FEM) modelling are both carried out and the results are compared. Settlement analysis by using the conventional approach is performed for the particular geometry by using Terzaghi’s one-dimensional consolidation theory. The compressibility coefficient involved in the formula is determined from consolidation test data. Thereafter settlement results are presented as settlement prediction on-time rate for comparison purpose. Then after 2D FEM analysis is performed for the same soil data and soil model is generated using FEM computer program. The results obtained from the analysis are compared with conventional method results. Terzaghi’s equation, which is used in the conventional approach, is a logarithm function whereas 2D FEM analysis based on linear function according to Hook’s law of linear elastic stress–strain relationship. Three different soil layers, which have different E and γ value determined for each layer and thickness of each layer is considered. The number variable affecting the results restrained comparison between conventional and 2D FEM settlement to be qualitative.
Comparative Study on Settlement Analysis of Shallow Foundation for Cohesive Soil
Lecture Notes in Civil Engineering
Patel, Satyajit (editor) / Solanki, C. H. (editor) / Reddy, Krishna R. (editor) / Shukla, Sanjay Kumar (editor) / Thaker, Grishma (author) / Pawar, Vaibhav (author) / Desai, Dimple (author)
2021-04-23
13 pages
Article/Chapter (Book)
Electronic Resource
English
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