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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 21 to 30 of 174 (0.126 seconds)Spelling suggestions: "subject:"ailing civil engineering"" "subject:"diling civil engineering""
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Field monitoring and numerical analysis on piled-raft foundation : case studyWang, Shenzhi, 王慎之 January 2014 (has links)
This thesis presents the result of detailed back-analysis, using three-dimensional finite-element analysis, of the instrumented piled-raft foundation in monitoring site. The piled-raft foundation is a composite foundation structure that consisting of piles, raft and surrounding soils acting as a whole system.
To check the reliability of soil taking load under the raft and obtain a reasonable value of load proportion taken by piles for the soil conditions in Hong Kong, a piled-raft foundation was partially instrumented in the monitoring site. The pile head loading, raft-soil contact pressure of specified area and settlement at raft top for selected locations were being monitored. Comparisons of overall settlement, differential settlements and the load carried by the piles show reasonably good agreement.
Followed by a 3D finite element modeling of the entire piled-raft foundation of the monitored site, the analysis includes a pile-soil slip interface model. The numerical analysis is performed to give insights to (1) load transfer behavior of the piled-raft foundation (2) effects of pile reduction on pile load ratio.
Combined the observation from site monitoring and analysis results from the numerical analysis, the proportion of load shared between piles and raft is revealed as 7:3. The lower limit of pile ratio is proposed as 0.67 for the site after the parametric study by removing piles strategically. In spite of the settlement-reducing purpose of the piles, the design of piled-raft foundation still concentrate on providing adequate axial capacity, with settlement requirement treated as a secondary issue. The significance of the study is that it provides factual evidence of soil taking the load under the raft, and the economical benefits of piled-raft foundation as a reduction of piles will save more than 2 million of the construction budgets. / published_or_final_version / Civil Engineering / Master / Master of Philosophy
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| 22 |
Comparison of pile loading test results of instrumented frictional H-piles with predictions from classical theory of pile capacityequationsSo, Hin-ting, Simon, 蘇顯庭 January 2003 (has links)
published_or_final_version / abstract / toc / Applied Geosciences / Master / Master of Science
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| 23 |
Behaviour of model pile groups in sandFirlotte, Frederick Wallace. January 1978 (has links)
No description available.
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| 24 |
An investigation of the development of skin friction of drilled piers in decomposed rockWatson, Francis Xavier 12 1900 (has links)
No description available.
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| 25 |
A model study of lateral pile deflectionsWare, Edwin Ellis 12 1900 (has links)
No description available.
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| 26 |
The bearing capacity of drilled piers on partially decomposed rockWalters, James Vernon 08 1900 (has links)
No description available.
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| 27 |
A comparative study of the performance of piles and pile formulasVan Reenen Willem Jan 08 1900 (has links)
No description available.
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| 28 |
An investigation of the lateral bearing capacity of pilingWilliams, Jacque Lamar 08 1900 (has links)
No description available.
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| 29 |
Use of low-strain dynamic tests to estimate the performance of axially loaded pilesDewberry, Gregory Jack 08 1900 (has links)
No description available.
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| 30 |
Wave interaction with pile supported harbor facilitiesDummer, Jerome Martin 14 December 1979 (has links)
Graduation date: 1980
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