碩士 / 國立成功大學 / 土木工程學系碩博士班 / 101 / As an island country, Taiwan lacks of fossil energy and has to import the energy from abroad. However, there are several places with superior wind energy in Taiwan where located in the coastal, in the offshore and island. Therefore, the development of the wind power to compensate the shortage of fossil energy is inevitable. According to the government plan on renewable energy, Changhua offshore area has been selected as the wind farm for the development of the wind power. There are two sites, Jhangbin site and Fengyuan site, including in the the proposed offshore wind farms.
However, Taiwan is located in the seismic belt of western Pacific rim; Several severe earthquake disasters have recorded in the proposed area of the wind farm. Earthquake may cause seabed soil liquefaction. The sea bed liquefaction may damage the structures of the wind turbines and the damage of the structures would cause power plants stop working. Therefore, it is necessary to evaluate the liquefaction potential in seabed soil of the proposed sites.
This study uses the simple empirical methods to evaluate the liquefaction potential of the sea bed soil in the offshore wind farm, which including Seed’s simplified method (1997), Tokimatsu and Yoshimi’s method (1983) and the method suggested by NJRA (1996). The ground peak acceleration for which the three empirical methods is needed is computed by three methods, which are NCREE suggested acceleration, attenuation formula and computer program SHAKE. Then, the liquefaction potential index are computed by using Iwasaki’s depth-influence method and set the divisional graphs of liquefaction potential in offshore wind farm. This outcome can be used for design in the offshore wind farm.
| Identifer | oai:union.ndltd.org:TW/101NCKU5015162 |
| Date | January 2013 |
| Creators | Chun-JenShih, 施淳仁 |
| Contributors | Jing-Wen Chen, 陳景文 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 104 |
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