研究生: |
張家嘉 Chia-chia Chang |
---|---|
論文名稱: |
以固定電流方式對高嶺土進行電滲透化學灌漿之行為探討 A Study of Electro-Osmotic Chemical Treatment for Kaolinite Using Constant Electric Current |
指導教授: |
歐章煜
Chang-yu Ou |
口試委員: |
林宏達
Horn-da Lin 簡紹琦 Shao-chi Chien |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2009 |
畢業學年度: | 97 |
語文別: | 中文 |
論文頁數: | 188 |
中文關鍵詞: | 電滲透化學灌漿 、高嶺土 、鈣離子 |
外文關鍵詞: | electro-osmotic chemical grouting, Kaolinite, Calcium |
相關次數: | 點閱:200 下載:9 |
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電滲透化學灌漿是一種針對黏性土壤的地盤改良工法,可增加軟弱黏土的強度。根據早期許多有效應用在地盤改良的電滲透化學灌漿試驗,得知陽離子交換以及產生沉積物對於強度有很大的影響,於是本研究首先嘗試使用固定電流的方式進行電滲透化學灌漿試驗,希望藉由統一試驗過程中所施予的總電量,來找出鈣離子在高嶺土中分布的情形、高嶺土含水量之變化及強度改良的真正原因。
於是本研究設定以試驗時間的長短以及不同濃度的氯化鈣溶液作為試驗的變數,並對試驗的結果進行研究。結果顯示,以固定電流的方式進行電滲透試驗,電流量的大小將成為驅動土壤內部化學反應非常關鍵的因素。而土壤中的含水量與鈣離子含量為影響土壤強度的主要原因,當鈣離子含量增加的情況不劇烈時,土壤強度主要受到含水量下降而增強。
Electro-osmotic chemical treatment is one of improvement techniques to improve the strength of soft soils. The purpose of this study is to find the calcium distribution in kaolinite, water content and point resistance from over the whole sample under the influence of constant current. Several concentrations of CaCl2 are injected from anode with different time durations to achieve the purpose mentioned above. The study has concluded that the volume of current would be a critical factor to drive the chemical reaction inside the soil. The water content and calcium distribution are the primary elements to determine the strength of the soil.
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