碩士 / 國立暨南國際大學 / 地震與防災工程研究所 / 96 / Pile-supported wharf has been a general option in port design to provide lateral resistance and bearing capacity under both static and dynamic loadings. For pile in liquefiable soils, analyzing the soil-pile-supported-structure dynamic behaviors is a significant issue for seismic safety designs. Field large-scale physical modeling using surface wave generator was performed to study the dynamic soil-structure interactions in pile-supported wharf.
A testing pit with dimensions of 5m x 5m x 2.5m in length, width, and height respectively was excavated and a wharf model consisting with 2 piles connected on a rigid slab was installed on the pit. Sand was backfilled to the pit in water pluviation fashion to prepare a saturated underwater slope. Dense instrumentation including strain gages on pile, motion and pore pressure sensors for soil were installed during the backfill process. Vibroseis truck was used to generate surface waves propagating through the test pit, shearing the soil and generating excess pore pressure.
Data reduction procedures were developed to analyze coupled shear strain-pore pressure generation behavior, pile responses, and soil-pile interaction characteristics. The results prove that the developed technique can capture the interactions among the induced shear strain, generated excess pore pressure, and dynamic p-y behavior around piles. Preliminary results show that the dynamic p-y curves varied during the loading process and were closely related to the generated excess pore pressure around the pile.
| Identifer | oai:union.ndltd.org:TW/096NCNU0140001 |
| Date | January 2008 |
| Creators | Hsing-Chuan Ho, 何幸娟 |
| Contributors | Wen-Jong Chang, 張文忠 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 126 |
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