- Title
- Mechanics of screw piles in clay
- Creator
- Todeshkejoei, Kourosh
- Resource Type
- thesis
- Date
- 2019
- Description
- Research Doctorate - Doctor of Philosophy (PhD)
- Description
- Deep foundation systems are the inevitable part of the design of many engineering structures. Screw piles, as a type of deep foundations, have many advantages over traditional piles which have made these piles an increasingly popular foundation system among engineers and designers. As these piles become more and more popular and common, a greater understanding regarding their behaviour is required. During the last decades various researchers have proposed approximate techniques to estimate the behaviour of screw piles. The majority of past research has been on preembedded screw piles and, as a result, the installation effect on the capacity of screw piles has not been properly addressed yet. In this thesis, the results of a comprehensive numerical and physical modelling into the mechanics of screw piles and the effect of installation is presented. The aim of this research is to better understand the effects of installation on the behaviour of screw piles and to develop a rigorous closed from equation for screw piles that can be used by design engineers. Focus is on saturated clay and screw piles that consist of one to three helical plates mounted to a circular shaft. Comprehensive parametric studies using finite element software ABAQUS are completed to account for installation effects with various configurations and loading conditions. Furthermore, a comparison of the numerical results against experimental data, obtained from physical modelling, is provided to validate the findings and give a rigorous evaluation of the installation process and its influence on capacity.
- Subject
- screw piles; deep foundation systems; engineering; geotechnical engineering
- Identifier
- http://hdl.handle.net/1959.13/1398032
- Identifier
- uon:34384
- Rights
- Copyright 2019 Kourosh Todeshkejoei
- Language
- eng
- Full Text
- Hits: 1371
- Visitors: 1718
- Downloads: 606
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | ATTACHMENT01 | Thesis | 13 MB | Adobe Acrobat PDF | View Details Download | ||
| View Details Download | ATTACHMENT02 | Abstract | 70 KB | Adobe Acrobat PDF | View Details Download |