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姓名 胡永欽(Yu-Chin Hu)  查詢紙本館藏   畢業系所 土木工程學系
論文名稱 連續壁防治土壤液化之初步研究
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摘要(中) 式,就地中連續壁降低土壤液化潛能之有效性進行初步探討。首先探
討了地震輸入維度、輸入地震的強度以及邊界條件對土壤受震反應的
影響,而後根據連續壁之勁度、埋置深度的參數變化探討連續壁防治
土壤液化的有效性。研究結果顯示,三維問題的研究應使用三維的地
震輸入比較適合,且輸入地震之加速度峰值越大,孔隙水壓上升的速
率也越快。採用連續壁可以延緩孔隙水壓到達最大值的時間,靠近連
續壁之土壤因受拘束作用而抑制了孔隙水壓之上升量,但距離較遠處
其效果遞減。根據此一初步之研究,只要設計得宜,連續壁不但可以
防止土壤液化,而且也可以降低地表沉陷量。
摘要(英) effectiveness of diaphragm wall in reducing the potential of soil
liquefaction induced by earthquakes in time domain. The influence of
the dimension of input motion, and the intensity of input motion, on the
obtained results is investigated first, and then the effectiveness of
diaphragm wall in reducing the liquefaction potential is studied by
varying the young’s modulus and embedment depth of wall. It was
found that in three dimension analysis, the 3D input motion should be
used, and the larger input motion is the faster the excess pore pressure is
generated. It also found that with appropriate design, the diaphragm
wall can be effective in preventing liquefaction, and reducing settlement.
關鍵字(中) ★ 有效應力法
★ 土壤液化
★ 連續壁
關鍵字(英) ★ effective stress method
★ soil liquefaction
★ diaphragm wall
論文目次 誌謝I
中文摘要II
英文摘要III
目錄IV
表目錄VI
圖目錄VII
第一章緒論1
1.1 研究動機與背景1
1.2 研究方法及目的2
1.3 論文內容2
第二章文獻回顧3
2.1 前言3
2.2 影響土壤液化的因素3
2.3 液化分析與防止土壤液化對策工法5
第三章理論推導9
3.1 前言9
3.2 系統的控制方程式(Governing Equation) 9
3.3 分析系統控制方程式之有限元素解析13
3.3.1 有限元素形式13
3.3.2 運動方程式之時間積分法18
3.4 多孔介質的邊界處理20
3.5 土壤非線性模式23
3.6 孔隙水壓模式25
第四章程式驗證28
4.1 前言28
4.2 一維模式的受震模擬28
第五章數值案例研究29
5.1 前言29
5.2 分析模型與輸入地震之介紹29
5.3 地震輸入維度對受震反應之影響30
5.4 地震輸入加速度峰值對受震反應之影響32
5.5 連續壁防治土壤液化有效性分析32
第六章結論與建議37
6.1 結論37
6.2 建議38
參考文獻39
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2. Seed, H.B. “Evaluation of Soil Liquefaction Effects on
Level Ground Earthquake,” ASCE, Annual Convention and
Exposition, Liquefaction Problems in Geotechnical
Engineering, Philadelphia, 1976.
3. Castro, G., Poulos, S.J. “Factor Affecting Liquefaction and
Cyclic Mobility,” ASCE, Annual Convention and Exposition,
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Evaluation for Level Ground During Earthquakes,” Journal
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Under Dynamics Conditions Numerical Solution and
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Cyclic Load, Chapter 5, pp77-103, 1982.
7. Prevost, J.H., “Nonlinear Transient Phenomena in SaturatedPorous Media,” Computer Methods Applied Mechanics and
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11. Ghaboussi, J. and Dikmen, S.U., “Liquefaction Analysis for
Multidirectional Shaking,” Journal of Geotechnical
Engineer Division, ASCE, Vol.107, GT5, pp.605-627, 1987.
12. Zienkiewicz, O.C. and Chang, C.T., and Pastor, M. “Simple
Models for Soil Behavior and Applications to Problems of Soil
Liquefaction,” Numerical Method in Geomechanics, Swoboda,
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14. Pastor, M. and Zienkiewicz, O.C. and Leung, K.H., "SimpleModel for Transient Soil Loading in Earthquake Analysis Ⅱ
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策”,地盤液狀化,日本土質工學會,1984。
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N., “Three-Dimensional Analysis for Evaluation
Effectiveness of Diaphragm Walls in Projecting a Piles-Soil
System from Liquefaction Hazard,” 日本建築學會構造工學論
文集。
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Liquefaction.”
20. 周健捷,「考慮孔隙水壓變化之樁基礎橋樑受震反應解析」,第七
屆大地工程學術研討會,pp.319-326,1997。
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Liquefaction-Preventing Effect of Partially-Improved Soil
by Three-Dimensional Liquefaction Analysis.”
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指導教授 陳慧慈(Huei-Tsyr Chen) 審核日期 2000-7-4
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