Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review
The use of deep cement mixing (DCM) columns for soil stabilization is an economical and reliable ground improvement technique that has been studied extensively. The aim of this article is to review the ultimate bearing capacity (UBC) of soft soils improved by DCM columns in a series of 1 g physical...
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| Format: | Article |
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Springer Verlag
2022
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| _version_ | 1796867322552516608 |
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| author | Dehghanbanadaki, Ali A. Rashid, Ahmad Safuan Ahmad, Kamarudin Mohd. Yunus, Nor Zurairahetty Shahu, Jagdish Telangrao Mohanty, Mamata |
| author_facet | Dehghanbanadaki, Ali A. Rashid, Ahmad Safuan Ahmad, Kamarudin Mohd. Yunus, Nor Zurairahetty Shahu, Jagdish Telangrao Mohanty, Mamata |
| author_sort | Dehghanbanadaki, Ali |
| collection | ePrints |
| description | The use of deep cement mixing (DCM) columns for soil stabilization is an economical and reliable ground improvement technique that has been studied extensively. The aim of this article is to review the ultimate bearing capacity (UBC) of soft soils improved by DCM columns in a series of 1 g physical modelling tests. Reliable databases of 35 stabilized tests using end-bearing DCM columns and 42 stabilized tests using floating DCM columns are analyzed. The effects of the influencing parameters of undrained shear strength of the soil (Cus) and DCM columns (Cuc), and the area improvement ratio (α) on the UBC and bearing capacity (Nc = UBC/Cus are discussed. The failure modes of the improved soil have been compared. The review results show that, for end-bearing and floating DCM columns, the role of α and the strength ratio between the columns and soil, respectively, are vital. The effect of the average end-bearing factor for DCM columns (Nc = 15.27) on the UBC was found to be higher than for floating DCM columns (Nc = 8.08). The experimental results were used to develop four computational models to estimate the UBC of stabilized soil improved by end-bearing and floating DCM columns. |
| first_indexed | 2024-03-05T21:25:30Z |
| format | Article |
| id | utm.eprints-102737 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T21:25:30Z |
| publishDate | 2022 |
| publisher | Springer Verlag |
| record_format | dspace |
| spelling | utm.eprints-1027372023-09-20T03:33:43Z http://eprints.utm.my/102737/ Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review Dehghanbanadaki, Ali A. Rashid, Ahmad Safuan Ahmad, Kamarudin Mohd. Yunus, Nor Zurairahetty Shahu, Jagdish Telangrao Mohanty, Mamata TA Engineering (General). Civil engineering (General) The use of deep cement mixing (DCM) columns for soil stabilization is an economical and reliable ground improvement technique that has been studied extensively. The aim of this article is to review the ultimate bearing capacity (UBC) of soft soils improved by DCM columns in a series of 1 g physical modelling tests. Reliable databases of 35 stabilized tests using end-bearing DCM columns and 42 stabilized tests using floating DCM columns are analyzed. The effects of the influencing parameters of undrained shear strength of the soil (Cus) and DCM columns (Cuc), and the area improvement ratio (α) on the UBC and bearing capacity (Nc = UBC/Cus are discussed. The failure modes of the improved soil have been compared. The review results show that, for end-bearing and floating DCM columns, the role of α and the strength ratio between the columns and soil, respectively, are vital. The effect of the average end-bearing factor for DCM columns (Nc = 15.27) on the UBC was found to be higher than for floating DCM columns (Nc = 8.08). The experimental results were used to develop four computational models to estimate the UBC of stabilized soil improved by end-bearing and floating DCM columns. Springer Verlag 2022-06 Article PeerReviewed Dehghanbanadaki, Ali and A. Rashid, Ahmad Safuan and Ahmad, Kamarudin and Mohd. Yunus, Nor Zurairahetty and Shahu, Jagdish Telangrao and Mohanty, Mamata (2022) Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review. KSCE Journal of Civil Engineering, 26 (6). pp. 2653-2661. ISSN 1226-7988 http://dx.doi.org/10.1007/s12205-022-1463-9 DOI:10.1007/s12205-022-1463-9 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Dehghanbanadaki, Ali A. Rashid, Ahmad Safuan Ahmad, Kamarudin Mohd. Yunus, Nor Zurairahetty Shahu, Jagdish Telangrao Mohanty, Mamata Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review |
| title | Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review |
| title_full | Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review |
| title_fullStr | Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review |
| title_full_unstemmed | Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review |
| title_short | Ultimate bearing capacity of soft soil improved by DCM columns: a comparative review |
| title_sort | ultimate bearing capacity of soft soil improved by dcm columns a comparative review |
| topic | TA Engineering (General). Civil engineering (General) |
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