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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳正興 | |
| dc.contributor.author | Chung-Chieh Hsu | en |
| dc.contributor.author | 許宗傑 | zh_TW |
| dc.date.accessioned | 2021-06-13T04:18:45Z | - |
| dc.date.available | 2006-07-28 | |
| dc.date.copyright | 2006-07-28 | |
| dc.date.issued | 2006 | |
| dc.date.submitted | 2006-07-23 | |
| dc.identifier.citation | 1. Arulanandan, K., Li, X. S. and Sivathasan, K.,“Numerical simulation of liquefaction-induced deformations”, Journal of Geotechnical Engineering, ASCE, Vol.126, No.7, pp.657-666 (2000).
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/32908 | - |
| dc.description.abstract | 本論文以傾斜地盤受震液化引致之側向變位為主題，進行簡化理論分析模式與數值模擬之研究，旨在建立一套合理之側向變位量分析模式以供工程分析與設計之用。
Towhata(1992)根據案例調查及模型試驗結果，推導出一套側向變位量理論解，由於理論解包含五組公式，公式之型式與參數相當複雜，且存在高估側向變位量之現象，故值得進一步改善以提昇其應用性。本研究以Towhata(1992)理論模式為基礎，採用最小勢能法並配合因次分析進行理論估算式之推導，提出第一階與第二階近似理論解，公式中之參數已合理簡化並具備明確之物理意義。針對緩坡及近河岸兩類地形條件，應用近似理論解建立簡化分析模式，並藉由一系列現地案例與震動台模型試驗結果進行驗證分析，結果顯示本研究所提之簡化模式能夠合理評估側向變位量，並改善Towhata模式高估變位量之現象。 數值模擬方面，本研究採用有限差分程式FLAC，應用Mohr-Coulomb塑性組成律與Martin et al.(1975)應變式孔隙水壓模式，建立有效應力分析模式。根據震動台模型試驗之模擬分析結果，證明本研究之數值模式能夠合理模擬液化地盤側向變位之行為與特性，並提供準確性良好之模擬結果。 最後將本研究所建立之簡化分析模式與數值模式應用於1999年台灣集集地震中貓羅溪案例與霧峰太子城堡案例之分析。由地表側向變位量分析值與現地實測數據之比對結果，顯示本研究之簡化分析模式能夠合理評估地表側向變位量；數值模擬則能夠完整呈現地盤受震過程中，土體之孔隙水壓與應力狀態之變化趨勢及地盤變位之特性，並合理解釋土壤液化引致側向變位之現象。 | zh_TW |
| dc.description.abstract | Lateral spreading occurred on liquefied ground will cause significant damages to supporting structures and buried facilities. The purpose of this study is to develop a simplified analytical model as well as a numerical model to evaluate the amount of lateral displacement induced by soil liquefactions for engineering applications.
This study follows the analytical approach proposed by Towhata (1992) through modifications and dimensional analysis to deduce a simpler solution. Two sets of approximate solutions are presented which are applicable to the condition of a continuous gently sloping ground and the condition of a river bank with cutting free-face, respectively. For verifications, nine cases of in-situ measurements during past earthquakes are analyzed. Results obtained show that the proposed simplified model can reasonably predict the lateral displacements associated with soil liquefactions. For numerical modeling, the program FLAC is used to simulate the phenomenon of lateral spreading induced by soil liquefactions. The analysis performed is the effective stress approach modeled with Martin’s pore pressure model. Analysis on two sets of shaking table tests are carried out to verify the applicability of the numerical model proposed. The results show that the numerical approach can reasonably simulate the behavior of lateral displacement of liquefied ground. For applications, three cases of lateral spreading occurred in 1999 Taiwan Chi-chi earthquake are analyzed with the proposed simplified model and numerical approach. From the results obtained, it is shown that the simplified model can reasonably predict the lateral displacements of liquefied ground, while the numerical approach can simulate the characteristics and mechanism of lateral displacement induced by soil liquefactions. Based on the studies presented herein, the proposed simplified model is convenient and sufficiently accurate to be used for engineering applications. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T04:18:45Z (GMT). No. of bitstreams: 1 ntu-95-D89521018-1.pdf: 7286505 bytes, checksum: 105bffc6a0bce56babd6a622f90ef2af (MD5) Previous issue date: 2006 | en |
| dc.description.tableofcontents | 誌 謝 I
摘 要 I Abstract Ⅲ 目 錄 Ⅳ 表目錄 Ⅷ 相片目錄 Ⅹ 圖目錄…. ⅩI 第一章 緒 論 1-1 1.1 研究背景 1-1 1.2 研究目標與內容 1-2 第二章 文獻回顧 2-1 2.1 地盤液化後之側向變位型態 2-1 2.2 液化地盤側向變位之特性 2-3 2.2.1 案例研究 2-3 2.2.2 模型試驗 2-8 2.3 液化地盤側向變位之分析方法 2-10 2.3.1 經驗模式 2-10 2.3.2 理論模式 2-18 2.3.3 數值分析 2-26 2.4 綜合討論 2-28 第三章 傾斜液化地盤側向變位之近似理論解 3-1 3.1 Towhata(1992)理論模式應用性探討 3-1 3.2 簡化模型與假設條件 3-3 3.3 系統總勢能增量分析 3-6 3.4 控制方程式推導 3-8 3.5 因次分析 3-9 3.6 近似理論解推導 3-10 3.6.1第一階近似理論解 3-10 3.6.2第二階近似理論解 3-13 3.7 綜合討論 3-17 第四章 簡化理論分析模式之案例分析 4-1 4.1 現地地形分類與簡化理論分析模式 4-1 4.1.1現地地形分類 4-1 4.1.2緩坡地形分析模式 4-2 4.1.3近河岸地形分析模式 4-3 4.2 緩坡地形案例分析 4-5 4.2.1日本能代(Noshiro)市Maeyama地區液化案例 4-5 4.2.2日本能代(Noshiro)市北區液化案例 4-6 4.3 近河岸地形案例分析 4-7 4.3.1日本新潟Oogata地區液化案例 4-7 4.3.2日本Kasukabe地區液化案例 4-9 4.4 應用於震動台模型試驗之分析 4-11 4.5 1964年日本新潟地震案例分析 4-12 4.5.1新潟飯店案例 4-12 4.5.2新潟火車站案例 4-14 4.5.3 Shitayama小學案例 4-15 4.5.4 Shinkawa地區Tsusen河岸案例 4-16 4.6綜合討論 4-18 第五章 傾斜液化地盤側向變位之數值分析模式 5-1 5.1 數值模式之建立 5-1 5.1.1 FLAC程式簡介 5-1 5.1.2數值模式之架構與分析流程 5-8 5.2 數值模式之驗證 5-10 5.2.1地盤模型 5-10 5.2.2材料參數 5-10 5.2.3動力分析 5-11 5.2.4分析結果 5-12 5.3 小尺寸震動台模型試驗之模擬分析 5-13 5.3.1震動台模型試驗概述 5-14 5.3.2數值地盤模型 5-14 5.3.3材料參數 5-14 5.3.4動力分析 5-15 5.3.5分析結果 5-16 5.4大尺寸震動台模型試驗之模擬分析 5-18 5.4.1震動台模型試驗概述 5-18 5.4.2數值地盤模型 5-19 5.4.3材料參數 5-19 5.4.4動力分析 5-20 5.4.5分析結果 5-20 5.5 綜合討論 5-24 第六章 921集集地震案例分析 6-1 6.1 921地震貓羅溪沿岸側向變位案例概述 6-1 6.1.1地表側向變位情形 6-1 6.1.2地質調查結果 6-2 6.2 分析參數之評估方法 6-3 6.3簡化理論模式分析 6-4 6.3.1貓羅溪河岸剖面一 6-4 6.3.2貓羅溪河岸剖面二 6-6 6.4數值模擬分析 6-7 6.4.1地震資料分析 6-7 6.4.2土壤材料參數評估 6-9 6.4.3貓羅溪河岸剖面一 6-10 6.4.4貓羅溪河岸剖面二 6-12 6.5 霧峰太子城堡社區對岸水稻田側向變位案例概述 6-15 6.5.1地表側向變位之情形 6-15 6.5.2地質調查結果 6-16 6.6 簡化理論模式分析 6-18 6.7數值模擬分析 6-19 6.7.1地震資料分析 6-19 6.7.2土壤材料參數評估 6-20 6.7.3太子城堡對岸水稻田案例分析 6-22 6.8分析結果之比較與討論 6-25 第七章 結論與建議 7-1 7.1 結論 7-1 7.1 建議 7-3 參考文獻 R-1 | |
| dc.language.iso | zh-TW | |
| dc.subject | 數值模擬 | zh_TW |
| dc.subject | 土壤液化 | zh_TW |
| dc.subject | 側向變位 | zh_TW |
| dc.subject | 簡化分析模式 | zh_TW |
| dc.subject | soil liquefaction | en |
| dc.subject | numerical simulation | en |
| dc.subject | simplified analytical model | en |
| dc.subject | lateral displacement | en |
| dc.title | 傾斜液化地盤側向變位分析模式之研究 | zh_TW |
| dc.title | Analysis for Lateral Displacement of Liquefied Ground | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 94-2 | |
| dc.description.degree | 博士 | |
| dc.contributor.oralexamcommittee | 林美聆,黃俊鴻,翁作新,林炳森,林三賢 | |
| dc.subject.keyword | 土壤液化,側向變位,簡化分析模式,數值模擬, | zh_TW |
| dc.subject.keyword | soil liquefaction,lateral displacement,simplified analytical model,numerical simulation, | en |
| dc.relation.page | 281 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2006-07-25 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
| 顯示於系所單位： | 土木工程學系 | |
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