| 研究生: |
邱士銘 Shih-Ming Chiu |
|---|---|
| 論文名稱: |
冰凍工法之凍脹模型比較分析 Comparative analysis of frost heave model with artificial ground freezing |
| 指導教授: |
張瑞宏
Jui-Hung Chang |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 畢業學年度: | 98 |
| 語文別: | 中文 |
| 論文頁數: | 96 |
| 中文關鍵詞: | 地盤冰凍工法 、土壤凍脹 、水分遷徙 、孔隙率函數 、有限元素法 、潛盾隧道 |
| 外文關鍵詞: | tunnel, ground freezing method, frost heave, water migration, porosity rate function, finite element method |
| 相關次數: | 點閱:12 下載:0 |
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本論文針對用於輔助潛盾隧道開挖之冰凍工法,考慮土壤冰凍後產生水分遷徙現象造成土壤之凍脹行為;研究中將使用孔隙率函數、及入流通量兩種凍脹模型進行數值模擬。分析之案例為Michalowski 及 Ming Zhu 所提出之試驗與中國南京San-Zhang隧道,以有限元素軟體ABAQUS進行數值模擬分析。依照試驗狀況建立有限元素數值模型,透過溫度邊界條件的設定,並根據凍脹模型設定土層之熱學性質參數、凍脹分析相關參數。模擬之結果與文獻試驗資料比較,以探討模擬之成效。
The main objective of this thesis is to study water migration and frost heave induced by ground freezing method applied to tunnel construction. The porosity rate function method and the water inflow content method are used in the numerical simulation. Two cases are simulated, included Michalowski & Ming Zhu test, and San-Zhang subway in Nanjing of China. The numerical analysis is performed by using ABAQUS, and considers temperature boundary conditions, thermal property parameter of soil layer, frost heave model parameter. The applicability of the numerical results is denouemented by comparing with the on-site observation of the field measurement.
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