碩士 / 國立臺灣海洋大學 / 河海工程學系 / 105 / When constructing structures on nearshore area, due to the weak properties of the sea bed, oversettlement is a frequently facing problem; furthermore, the experimental methods using for evaluating changes of pile load versus depth from pile pullout test is inadequate. Numerical analysis is used to simulate the field situation and the mechanical behaviour of its process in this thesis.
In this thesis, the two part of study is analyzed by FEM numerical program PLAXIS. A trapezoid breakwater is simplified modeling to analysis the settlement of layered constrution. By comparing with results of the observed settlement to verify the suitable of these analytical procedures. The verified analytical procedures were then used to further investigate the effect of different soil parameters of two sites. The change of period of phases is to observe the effect on settlement.
To simulate the actual pile system, four different loads were selected from pile load test to verified the model by comparing the displacement of pile head versus load. Observation the differences between numerical results and pile load after secant and tangent modulus conversion versus depth is discussed respectively in this thesis. The relationship of shaft unit frictional resistance versus displacement and the displacement and principal strain and stress is also shown in Chapter 5 to investigate the pile-load system.
| Identifer | oai:union.ndltd.org:TW/105NTOU5192028 |
| Date | January 2017 |
| Creators | Kao, Yu-Hao, 高宇顥 |
| Contributors | Lin, San-Shyan, 林三賢 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 200 |
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