Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field Theory
In the case of problematic soils and tall buildings where the design requirements cannot be satisfied merely by a raft foundation, it is of common practice to improve the raft performance by adding a number of piles so that the ultimate load capacity and settlement behavior can be enhanced. In this...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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University of Tehran Press
2018-06-01
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| Series: | Civil Engineering Infrastructures Journal |
| Subjects: | |
| Online Access: | https://ceij.ut.ac.ir/article_66125_4c669263eea96ea7c43bb9651f0dd297.pdf |
| _version_ | 1811343951398961152 |
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| author | Reza Jamshidi Chenari Ali Ghorbani Amin Eslami Fazeleh Mirabbasi |
| author_facet | Reza Jamshidi Chenari Ali Ghorbani Amin Eslami Fazeleh Mirabbasi |
| author_sort | Reza Jamshidi Chenari |
| collection | DOAJ |
| description | In the case of problematic soils and tall buildings where the design requirements cannot be satisfied merely by a raft foundation, it is of common practice to improve the raft performance by adding a number of piles so that the ultimate load capacity and settlement behavior can be enhanced. In this study, the effect of spatial variability of soil parameters on the bearing capacity of piled raft foundation is investigated based on the random field theory using the finite difference software of FLAC3D. The coefficient of variation (COV) of the soil’s undrained shear strength, the ratio of standard deviation to the mean, was considered as a random variable. Moreover, the effect of variation of this parameter on the bearing capacity of piled raft foundation in undrained clayey soils was studied taking the Monte Carlo simulation approach and the normal statistical distribution. According to the results, taking into account the soil heterogeneity generally results in more contribution of the raft in bearing capacity than that of the homogenous soils obtained by experimental relationships, which implies the significance of carrying out stochastic analyses where the soil properties are intensively variant. |
| first_indexed | 2024-04-13T19:39:05Z |
| format | Article |
| id | doaj.art-bdf137833327499da9d4ef26f561d221 |
| institution | Directory Open Access Journal |
| issn | 2322-2093 2423-6691 |
| language | English |
| last_indexed | 2024-04-13T19:39:05Z |
| publishDate | 2018-06-01 |
| publisher | University of Tehran Press |
| record_format | Article |
| series | Civil Engineering Infrastructures Journal |
| spelling | doaj.art-bdf137833327499da9d4ef26f561d2212022-12-22T02:32:56ZengUniversity of Tehran PressCivil Engineering Infrastructures Journal2322-20932423-66912018-06-01511355410.7508/ceij.2018.01.00366125Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field TheoryReza Jamshidi Chenari0Ali Ghorbani1Amin Eslami2Fazeleh Mirabbasi3The University of GuilanThe University of GuilanThe University of GuilanThe University of GuilanIn the case of problematic soils and tall buildings where the design requirements cannot be satisfied merely by a raft foundation, it is of common practice to improve the raft performance by adding a number of piles so that the ultimate load capacity and settlement behavior can be enhanced. In this study, the effect of spatial variability of soil parameters on the bearing capacity of piled raft foundation is investigated based on the random field theory using the finite difference software of FLAC3D. The coefficient of variation (COV) of the soil’s undrained shear strength, the ratio of standard deviation to the mean, was considered as a random variable. Moreover, the effect of variation of this parameter on the bearing capacity of piled raft foundation in undrained clayey soils was studied taking the Monte Carlo simulation approach and the normal statistical distribution. According to the results, taking into account the soil heterogeneity generally results in more contribution of the raft in bearing capacity than that of the homogenous soils obtained by experimental relationships, which implies the significance of carrying out stochastic analyses where the soil properties are intensively variant.https://ceij.ut.ac.ir/article_66125_4c669263eea96ea7c43bb9651f0dd297.pdfbearing ratiopiled raftrandom field theoryspatial variationundrained shear strength |
| spellingShingle | Reza Jamshidi Chenari Ali Ghorbani Amin Eslami Fazeleh Mirabbasi Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field Theory Civil Engineering Infrastructures Journal bearing ratio piled raft random field theory spatial variation undrained shear strength |
| title | Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field Theory |
| title_full | Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field Theory |
| title_fullStr | Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field Theory |
| title_full_unstemmed | Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field Theory |
| title_short | Behavior of Piled Raft Foundation on Heterogeneous Clay Deposits Using Random Field Theory |
| title_sort | behavior of piled raft foundation on heterogeneous clay deposits using random field theory |
| topic | bearing ratio piled raft random field theory spatial variation undrained shear strength |
| url | https://ceij.ut.ac.ir/article_66125_4c669263eea96ea7c43bb9651f0dd297.pdf |
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