Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil
Shell foundations are often used to raise the carrying capacity of a structure on weak soils. In cases where large superstructure loads must be transferred to poorer soils, shell foundations are more cost-effective than ordinary shallow foundations. Advances in the study and design of shell-type fou...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/64/e3sconf_icgee2023_01017.pdf |
| _version_ | 1797673529702875136 |
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| author | Mahmood Alaa Y. Khalil Amina A. |
| author_facet | Mahmood Alaa Y. Khalil Amina A. |
| author_sort | Mahmood Alaa Y. |
| collection | DOAJ |
| description | Shell foundations are often used to raise the carrying capacity of a structure on weak soils. In cases where large superstructure loads must be transferred to poorer soils, shell foundations are more cost-effective than ordinary shallow foundations. Advances in the study and design of shell-type foundations have shown their superiority over traditional footings in poorer soils. The current study aims to investigate shell shape’s influence on ultimate load capacity. Seven footing types’ models were created along with an appropriate testing box. The soil needed for the study was from the region north of Mosul city, classified as silt with low plasticity (sandy silt) soil. A laboratory model experimentally determined the ultimate load capacities for inverted and upright conical, inverted and upright pyramid, and hemispherical shell foundations on silty soil. The achieved results were associated with those for conventional flat squares and circles. According to the findings, the “upright conical” shell footing has a load capacity of 12.7 kN, higher than the other foundations, and its efficiency was 51%. When comparing foundations, the “upright pyramidal” shell footing has better settling characteristics and a settlement factor of 0.017. As the shell factor decreases, the shell foundation begins to behave more like a flat foundation, which reduces the maximum load capacity of the shell foundation. |
| first_indexed | 2024-03-11T21:46:46Z |
| format | Article |
| id | doaj.art-a0755e7ebe584dd19dfec8c90ae2c481 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-11T21:46:46Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-a0755e7ebe584dd19dfec8c90ae2c4812023-09-26T10:11:59ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014270101710.1051/e3sconf/202342701017e3sconf_icgee2023_01017Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt SoilMahmood Alaa Y.0Khalil Amina A.1Department of Civil Engineering, University of MosulDepartment of Civil Engineering, University of MosulShell foundations are often used to raise the carrying capacity of a structure on weak soils. In cases where large superstructure loads must be transferred to poorer soils, shell foundations are more cost-effective than ordinary shallow foundations. Advances in the study and design of shell-type foundations have shown their superiority over traditional footings in poorer soils. The current study aims to investigate shell shape’s influence on ultimate load capacity. Seven footing types’ models were created along with an appropriate testing box. The soil needed for the study was from the region north of Mosul city, classified as silt with low plasticity (sandy silt) soil. A laboratory model experimentally determined the ultimate load capacities for inverted and upright conical, inverted and upright pyramid, and hemispherical shell foundations on silty soil. The achieved results were associated with those for conventional flat squares and circles. According to the findings, the “upright conical” shell footing has a load capacity of 12.7 kN, higher than the other foundations, and its efficiency was 51%. When comparing foundations, the “upright pyramidal” shell footing has better settling characteristics and a settlement factor of 0.017. As the shell factor decreases, the shell foundation begins to behave more like a flat foundation, which reduces the maximum load capacity of the shell foundation.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/64/e3sconf_icgee2023_01017.pdfshell foundationshell efficiencyload capacityload settlement |
| spellingShingle | Mahmood Alaa Y. Khalil Amina A. Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil E3S Web of Conferences shell foundation shell efficiency load capacity load settlement |
| title | Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil |
| title_full | Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil |
| title_fullStr | Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil |
| title_full_unstemmed | Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil |
| title_short | Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil |
| title_sort | experimental study for load settlement behavior of flat and shell footings on sandy silt soil |
| topic | shell foundation shell efficiency load capacity load settlement |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/64/e3sconf_icgee2023_01017.pdf |
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