Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil
Piles provide a convenient solution for heavy structures, where the foundation soil bearing capacity, or the tolerable settlement may be exceeded due to the applied loads. In cohesionless soils, the two frequently used pile installation methods are driving and drilling (or boring). This paper review...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/11/11/472 |
| _version_ | 1797510166486188032 |
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| author | Hany El Naggar Islam Ezzeldin |
| author_facet | Hany El Naggar Islam Ezzeldin |
| author_sort | Hany El Naggar |
| collection | DOAJ |
| description | Piles provide a convenient solution for heavy structures, where the foundation soil bearing capacity, or the tolerable settlement may be exceeded due to the applied loads. In cohesionless soils, the two frequently used pile installation methods are driving and drilling (or boring). This paper reviews the results of a large database of pile load tests of driven and drilled piles in cohesionless soils at various locations worldwide. The load test results are compared with the static analysis design method for single piles recommended in the Canadian Foundation Engineering Manual (CFEM) and other codes and standards such as the American Association of State Highway and Transportation Officials, Federal Highway Administration, American Petroleum Institute, Eurocode, and the Naval Facilities Engineering Command. An improved pile design procedure is proposed linking the pile design coefficients <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mi>β</mi><mo>)</mo></mrow></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mrow><msub><mi>N</mi><mi>t</mi></msub></mrow><mo>)</mo></mrow></mrow></semantics></math></inline-formula> to the friction angle of the soil, rather than employing the generalized soil type grouping scheme previously used in the CFEM. This improvement included in the new version of the CFEM 2021 produces a more unified value of the pile capacity calculated by different designers, reducing the obtained design capacity discrepancies. |
| first_indexed | 2024-03-10T05:27:46Z |
| format | Article |
| id | doaj.art-9fecb564d414429fad582e25fdb8cbef |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-10T05:27:46Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-9fecb564d414429fad582e25fdb8cbef2023-11-22T23:30:11ZengMDPI AGGeosciences2076-32632021-11-01111147210.3390/geosciences11110472Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless SoilHany El Naggar0Islam Ezzeldin1Department of Civil and Resource Engineering, Dalhousie University, Halifax, NS B3H 4R2, CanadaDepartment of Civil and Resource Engineering, Dalhousie University, Halifax, NS B3H 4R2, CanadaPiles provide a convenient solution for heavy structures, where the foundation soil bearing capacity, or the tolerable settlement may be exceeded due to the applied loads. In cohesionless soils, the two frequently used pile installation methods are driving and drilling (or boring). This paper reviews the results of a large database of pile load tests of driven and drilled piles in cohesionless soils at various locations worldwide. The load test results are compared with the static analysis design method for single piles recommended in the Canadian Foundation Engineering Manual (CFEM) and other codes and standards such as the American Association of State Highway and Transportation Officials, Federal Highway Administration, American Petroleum Institute, Eurocode, and the Naval Facilities Engineering Command. An improved pile design procedure is proposed linking the pile design coefficients <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mi>β</mi><mo>)</mo></mrow></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mrow><msub><mi>N</mi><mi>t</mi></msub></mrow><mo>)</mo></mrow></mrow></semantics></math></inline-formula> to the friction angle of the soil, rather than employing the generalized soil type grouping scheme previously used in the CFEM. This improvement included in the new version of the CFEM 2021 produces a more unified value of the pile capacity calculated by different designers, reducing the obtained design capacity discrepancies.https://www.mdpi.com/2076-3263/11/11/472pilespile designpile capacityfraction anglepile load tests |
| spellingShingle | Hany El Naggar Islam Ezzeldin Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil Geosciences piles pile design pile capacity fraction angle pile load tests |
| title | Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil |
| title_full | Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil |
| title_fullStr | Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil |
| title_full_unstemmed | Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil |
| title_short | Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil |
| title_sort | evaluation of the static design procedure in the canadian foundation engineering manual for piles in cohesionless soil |
| topic | piles pile design pile capacity fraction angle pile load tests |
| url | https://www.mdpi.com/2076-3263/11/11/472 |
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