| 研究生: |
謝絜羽 Xie, Jie-Yu |
|---|---|
| 論文名稱: |
以剪力波速法評估台南地區土壤液化適用性之研究 Suitability Study of Soil Liquefaction in Tainan Area by shear Wave Velocity Method |
| 指導教授: |
倪勝火
Ni, Sheng-Huoo |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系碩士在職專班 Department of Civil Engineering (on the job class) |
| 論文出版年: | 2019 |
| 畢業學年度: | 107 |
| 語文別: | 中文 |
| 論文頁數: | 120 |
| 中文關鍵詞: | 美濃地震 、土壤液化 、剪力波速法 、震測圓錐貫入試驗 、標準貫入試驗 、液化潛能評估 、液化潛能指數 |
| 外文關鍵詞: | Meinong earthquake, soil liquefaction, shear wave velocity method, Seismic Cone Penetration Test, Standard Penetration Test, liquefaction potential evaluation, liquefaction potential index |
| 相關次數: | 點閱:162 下載:2 |
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本研究範圍為台南市北區、中西區、東區、永康區、安南區及新市區共6個行政區,使用台南市政府工務局「臺南市中級土壤液化潛勢地圖」之鑽探土層資料,並以土壤液化評估法所得之結果與歷年台南液化表徵資料相比較,藉以探討各評估方法在台南市區之適用性。
以計畫中之12孔震測圓錐貫入試驗得到剪力波速資料,並參考該試驗鑽孔鄰近SPT鑽孔之土層資料,以Ohsaki與Iwasaki (1973)、Imai (1977)、Seed與Idriss (1981)、Lee (1990)、Ni等人 (1990)、Kayabali (1996)、Hasancebi與Ulusay (2006) 等7種N值與剪力波速之關係式,將N值轉換為剪力波速,並與SCPT鑽孔實際測得之剪力波速,以Andrus與Stokoe (2000) 剪力波速液化潛能評估方法計算土壤液化潛能,再使用Iwasaki (1984) 深度加權法評估液化損害程度。
參考國震中心2006之大地震害潛勢資料建置及應用,依高、中、低液化敏感類別的鑽孔位置,分別畫出半徑為300公尺、400公尺和600公尺的圓形區域,將台南液化表徵點位以Arc GIS環域功能畫出各土壤液化高、中、低潛勢範圍,再與各種評估方法液化潛能指數圖使用圖層套疊加以分析,分析結果12個孔位中以SCPT試驗正確孔數達8孔,準確率為67% 為最佳,Seed與Idriss (1981) 及Ni等人 (1990) 正確孔數達6孔,準確率為50% 為次佳。
Based on the shear wave velocity data obtained by the 12-hole Seismic Cone Penetration Test, and referring to the soil data of the nearby SPT borehole, the N values are converted into shears by the relationship between the seven SPT-N values and the shear wave velocity. Force wave speed. Next, Andrus and Stokoe (2000) were used to calculate soil liquefaction potential, and finally Iwasaki (1982) was used to assess the extent of liquefaction damage.
The liquefaction characterization point of Tainan is used to draw high, medium and low potential ranges of soil liquefaction with Arc GIS. After the analysis results, the correct number of 8 holes was determined by SCPT in 12 holes, and the accuracy was 67%. The correct number of holes under the method of Seed and Idriss (1981) and Ni et al. (1990) is 6 holes with an accuracy of 50%, which is the second best.
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校內:2021-08-31公開