Performance of T-shaped skirted footings resting on sand
A series of plate load tests were performed on a model T-shaped skirted footing by varying the normalized skirt depth and relative density of sand from 0.25 to 1.5 and 30 % to 60 %, respectively. The findings revealed that, regardless of the roughness condition, the observed peak in the pressure set...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Tehran
2023-03-01
|
| Series: | International Journal of Mining and Geo-Engineering |
| Subjects: | |
| Online Access: | https://ijmge.ut.ac.ir/article_89435_529bd0a90ce21458708d1525bb23d769.pdf |
| _version_ | 1797859401293365248 |
|---|---|
| author | Tammineni Gnananandarao Kennedy Onyelowe Vishwas Khatri Rakesh Kumar Dutta |
| author_facet | Tammineni Gnananandarao Kennedy Onyelowe Vishwas Khatri Rakesh Kumar Dutta |
| author_sort | Tammineni Gnananandarao |
| collection | DOAJ |
| description | A series of plate load tests were performed on a model T-shaped skirted footing by varying the normalized skirt depth and relative density of sand from 0.25 to 1.5 and 30 % to 60 %, respectively. The findings revealed that, regardless of the roughness condition, the observed peak in the pressure settlement ratio corresponding to relative densities of 30%, 40%, 50%, and 60% gradually vanished as the normalized skirt depth was increased from 0.25 to 1.5. The results further revealed that at a given pressure, a lesser settlement ratio was observed for a skirted footing than the footing without a skirt. The most significant benefit of providing a skirt to the footing was obtained when the base and skirt were partially rough and the relative density of sand was kept at 30%. In all the cases, the observed bearing capacity ratio for the present skirted footing was higher than the H-shaped skirted footing reported in the literature. Finally, an empirical equation was proposed to predict the bearing capacity ratio and settlement reduction factor for a given skirt depth and sand relative density. |
| first_indexed | 2024-04-09T21:28:52Z |
| format | Article |
| id | doaj.art-1f8c86e798364c5e8159b3a8449e78bd |
| institution | Directory Open Access Journal |
| issn | 2345-6949 |
| language | English |
| last_indexed | 2024-04-09T21:28:52Z |
| publishDate | 2023-03-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | International Journal of Mining and Geo-Engineering |
| spelling | doaj.art-1f8c86e798364c5e8159b3a8449e78bd2023-03-27T11:51:46ZengUniversity of TehranInternational Journal of Mining and Geo-Engineering2345-69492023-03-01571657110.22059/ijmge.2022.340418.59495589435Performance of T-shaped skirted footings resting on sandTammineni Gnananandarao0Kennedy Onyelowe1Vishwas Khatri2Rakesh Kumar Dutta3Department of civil engineering, Aditya College Engineering & Technology, IndiaDepartment of Civil Engineering, Michael Okpara University of Agric., Umudike, NigeriaDepartment of Civil Engineering, Indian Institute of Technology, Dhanbad, IndiaDepartment of Civil Engineering, National Institute of technology, IndiaA series of plate load tests were performed on a model T-shaped skirted footing by varying the normalized skirt depth and relative density of sand from 0.25 to 1.5 and 30 % to 60 %, respectively. The findings revealed that, regardless of the roughness condition, the observed peak in the pressure settlement ratio corresponding to relative densities of 30%, 40%, 50%, and 60% gradually vanished as the normalized skirt depth was increased from 0.25 to 1.5. The results further revealed that at a given pressure, a lesser settlement ratio was observed for a skirted footing than the footing without a skirt. The most significant benefit of providing a skirt to the footing was obtained when the base and skirt were partially rough and the relative density of sand was kept at 30%. In all the cases, the observed bearing capacity ratio for the present skirted footing was higher than the H-shaped skirted footing reported in the literature. Finally, an empirical equation was proposed to predict the bearing capacity ratio and settlement reduction factor for a given skirt depth and sand relative density.https://ijmge.ut.ac.ir/article_89435_529bd0a90ce21458708d1525bb23d769.pdfbearing capacity ratiosettlement reduction factorrelative densityroughnessmultivariable regression |
| spellingShingle | Tammineni Gnananandarao Kennedy Onyelowe Vishwas Khatri Rakesh Kumar Dutta Performance of T-shaped skirted footings resting on sand International Journal of Mining and Geo-Engineering bearing capacity ratio settlement reduction factor relative density roughness multivariable regression |
| title | Performance of T-shaped skirted footings resting on sand |
| title_full | Performance of T-shaped skirted footings resting on sand |
| title_fullStr | Performance of T-shaped skirted footings resting on sand |
| title_full_unstemmed | Performance of T-shaped skirted footings resting on sand |
| title_short | Performance of T-shaped skirted footings resting on sand |
| title_sort | performance of t shaped skirted footings resting on sand |
| topic | bearing capacity ratio settlement reduction factor relative density roughness multivariable regression |
| url | https://ijmge.ut.ac.ir/article_89435_529bd0a90ce21458708d1525bb23d769.pdf |
| work_keys_str_mv | AT tamminenignananandarao performanceoftshapedskirtedfootingsrestingonsand AT kennedyonyelowe performanceoftshapedskirtedfootingsrestingonsand AT vishwaskhatri performanceoftshapedskirtedfootingsrestingonsand AT rakeshkumardutta performanceoftshapedskirtedfootingsrestingonsand |