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Back analysis of foundation performance case studies
Thesis (MEng)--Stellenbosch University, 2024.
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| Format: | Thesis |
| Language: | en_ZA en_ZA |
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Stellenbosch : Stellenbosch University
2024
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| _version_ | 1867613984066109440 |
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| access_status_str | Open Access |
| author | Heynes, Callen |
| author2 | MacRobert, Charles |
| author_browse | Heynes, Callen MacRobert, Charles |
| author_facet | MacRobert, Charles Heynes, Callen |
| author_sort | Heynes, Callen |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2024. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/130376 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA en_ZA |
| last_indexed | 2026-06-10T12:44:49.127Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/130376 Back analysis of foundation performance case studies Heynes, Callen MacRobert, Charles Stellenbosch University. Faculty of Engineering. Dept. of Civil Engineering. Stellenbosch University. Faculty of Engineering. Dept. of Civil Engineering. Foundations -- Design and construction Construction projects Geotechnical engineering Structural engineering Thesis (MEng)--Stellenbosch University, 2024. ENGLISH ABSTRACT: When dealing with foundation design, geotechnical engineers deal with a significant degree of uncertainty, given the complex nature of the soil. The uncertainty associated with a project cannot be completely removed. However, it can be adequately reduced by obtaining a better understanding of the material. All design decisions need to be based on the knowledge of the material to ensure that adequate measures are incorporated into the design to mitigate associated risks and uncertainties. While understanding the material, geotechnical engineers also need to exhibit sound engineering judgement and experience. This can take time to develop, something that engineers do not have. However, engineers can use case studies in situations similar to their own to learn from more experienced engineers and understand how they approached a similar problem. This study looked at case studies that dealt with shallow foundations. The information regarding these foundations was presented as a structured case study abstract. Information such as the location, soil profile, foundation solution, and loading conditions were all highlighted in the abstracts. In the current study, the settlement performance of the foundations was analysed using Settle3. This method of analysis was used as the case studies considered utilized older methods of analysis. Settle3 is a foundation analysis software, that enables quick analysis of the foundations. The software utilized several empirical methods to predict the settlement. The settlements determined using the software were compared with the predictions made by the authors of the original study. The predictions made in the original and the current study were shown in the abstracts. Assumptions made were regarding the homogeneity and the stressstrain relationship of the soil. The results obtained in the original studies generally overestimated the observed settlement of the foundations. The analysis done in this study utilized the same assumptions made in the previous studies. However, the results were closer to the actual displacements but still overestimated them. The case study abstracts documented relevant information regarding the settlement performance of the shallow foundations in a single, accessible document. Practicing engineers should be able to access these abstracts and use them to supplement their knowledge and experience with the knowledge of other engineers. In so doing, they can look to implement the successful aspects of a project while looking to avoid the same mistakes. Therefore, utilizing the case study abstracts will help to ensure the timely delivery of a successful project. A database containing these case study abstracts is yet to be formed. AFRIKAANSE OPSOMMING: Wanneer daar met die ontwerp van fondasies gewerk word, is daar ‘n groot graad van onsekerheid vir geotegniese ingenieurs, gegewe die komplekse aard van grond. Die onsekerheid wat geassosieer word met ‘n projek, kan nie heeltemal verwyder word nie. Nietemin, kan dit genoegsaam verminder word deur ‘n beter begrip van die materiaal te verkry. Alle ontwerp-besluite moet gebaseer word op die kennis van die materiaal om te verseker dat genoegsame maatreëls ingesluit word in die ontwerp, om gepaardgaande risiko’s en onsekerhede te verminder. Terwyl die materiaal verstaan moet word, moet geotegniese ingenieurs ook goeie ingenieurs-oordeel en ervaring toon. Dit kan ‘n tyd neem om te ontwikkel, en dit is wat ingenieurs nie het nie. Nietemin kan ingenieurs gevallestudies gebruik in situasies, soortgelyk aan hul eie, asook om van meer ervare ingenieurs te leer en te verstaan hoe om ‘n soortgelyke probleem te benader. Hierdie studie het gekyk na gevallestudies wat met vlak fondasies gewerk het. Die inligting rakende hierdie gevallestudies, was aangebied as ‘n gestruktureerde uittreksel van die gevallestudie. Inligting soos die ligging, grondprofiel, fondasieoplossing en lading-kondisies was almal uitgelig in die uittreksel. In die huidige gevallestudie, was die vestiging-prestasie van die fondasies geanaliseer deur Settle3 sagteware te gebruik. Hierdie metode van analise is gebruik aangesien die gevallestudies wat oorweeg is, ouer analisemetodes gebruik het. Settle3 is 'n fondasie analise sagteware wat vinnige ontleding van die fondamente moontlik maak. Hierdie sagteware het verskeie empiriese metodes gebruik om die fondasieprestasie te voorspel. Die vestigings, volgens die sagteware, was vergelyk met die voorspellings wat gemaak was deur die outeurs van die oorsponklike gevallestudie. Die voorspellings wat gemaak is in die oorspronklike sowel as in die huidige gevallestudies, word in die uittreksels uiteengesit. Aannames is gemaak met betrekking tot die homogeniteit en die spannings-druk-verhouding van die grond. Die resultate wat verkry was in die oorspronklike gevallestudies, het die vestiging van die fondasies oor die algemeen oorskat. Die analise wat in hierdie gevallestudie gedoen is, het dieselfde aannames gemaak as wat met die vorige gevallestudies gemaak is. Nietemin, was die resultate nader aan die werklike verplasings, maar dit was steeds oorskat. Die gevallestudie-uittreksels, dokumenteer die relevante inligting rakende die vestigings-prestasie van die vlak fondasies in ‘n enkele, toeganklike dokument. Praktiserende ingenieurs behoort toegang tot hierdie uittreksels te kry en moet dit te kan gebruik om saam met die kennis van ervare ingenieurs, hul eie kennis en ervaring aan te vul. Deur dit te doen, kan hul daarna kyk om die suksesvolle aspekte van ‘n projek te implementeer, asook om te voorkom dat dieselfde foute weer gemaak word. Gevolglik, om gevallestudies aan te wend, sal bydra om projekte betyds en suksesvol te voltooi. 'n Databasis wat hierdie gevallestudieuittreksels bevat, moet nog gevorm word. Masters 2024-02-22T18:23:22Z 2024-04-26T15:21:31Z 2024-02-22T18:23:22Z 2024-04-26T15:21:31Z 2024-02 Thesis https://scholar.sun.ac.za/handle/10019.1/130376 en_ZA en_ZA Stellenbosch University xv, 109 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Foundations -- Design and construction Construction projects Geotechnical engineering Structural engineering Heynes, Callen Back analysis of foundation performance case studies |
| title | Back analysis of foundation performance case studies |
| title_full | Back analysis of foundation performance case studies |
| title_fullStr | Back analysis of foundation performance case studies |
| title_full_unstemmed | Back analysis of foundation performance case studies |
| title_short | Back analysis of foundation performance case studies |
| title_sort | back analysis of foundation performance case studies |
| topic | Foundations -- Design and construction Construction projects Geotechnical engineering Structural engineering |
| url | https://scholar.sun.ac.za/handle/10019.1/130376 |
| work_keys_str_mv | AT heynescallen backanalysisoffoundationperformancecasestudies |