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Student Number 963202010
Author Ming-Lun Kuo(郭明倫)
Author's Email Address No Public.
Statistics This thesis had been viewed 1178 times. Download 628 times.
Department Civil Engineering
Year 2008
Semester 1
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title Three-Dimensional Analysis of Ground Motion Considering the Local Irregularity of Earthquake Bedrock
Date of Defense 2008-12-12
Page Count 199
Keyword
  • elastic model
  • parallel computing
  • staggered-grid finite-difference method
  • Abstract Recent strong earthquakes reveal that characteristics of ground vibration are affected by the shape and depth of the bedrock significantly.  To predict the strong ground motions of a region thus require the information regarding the three dimensional distribution of the bedrock and soil layer of that region. 
    Generally, in the prediction of the strong ground motions of a region, the rigorous analytical solution is formidable due to the complexity of the bedrock and soil layer and thus numerical methods are adopted. In this study, we use program FDM3D, which is a staggered-grid finite-difference method in combination with the parallel computing technique, to simulate the ground vibration response of the 3D elastic model.
    For a site subjected to different sizes of earthquakes, the characteristics of ground vibration are different, indicating that using the result of small earthquake to predict the ground responses of strong earthquakes is not appropriate. This study also found the importance of the underground-structure for predicting the surface ground motions. It is recommended that the distribution of earthquake bedrock should be determined within a distance of 3 km in the vicinity of the desired region.
    Table of Content 摘 要I
    AbstractIII
    致 謝V
    目 錄VII
    表 目 錄XI
    圖 目 錄XIII
    第一章 緒論1
    1.1 研究動機1
    1.2 研究目的與方法1
    1.3 論文內容2
    第二章 文獻回顧3
    2.1 文獻回顧3
    2.2 結語5
    第三章 理論背景7
    3.1 前言7
    3.2 交錯網格有限差分法7
    3.2.1 ㄧ维波動方程有限差分表示式7
    3.2.2 三維運動方程式9
    3.2.3 邊界條件12
    3.2.4 震源機制15
    3.2.5 計算穩定條件15
    3.2.6 波傳能量的衰減16
    3.3 平行計算(Paralleling Computing)18
    3.3.1 PC Cluster18
    3.3.2 標準平行化程式庫MPI18
    3.4 程式驗證19
    第四章 不規則地震基盤在弱震下對地表地震動的影響27
    4.1 前言27
    4.2 輸入地震與分析模式的介紹27
    4.3 震源在左側之分析結果與討論29
    4.3.1 滑動角為0°29
    4.3.2 滑動角為35°35
    4.3.3 滑動角為90°40
    4.3.4 小結46
    4.4 震源在右側之分析結果與討論47
    4.4.1 滑動角為0°47
    4.4.2 滑動角為35°52
    4.4.3 滑動角為90°58
    4.4.4 小結63
    第五章 不規則地震基盤在強震下對地表地震動的影響103
    5.1 前言103
    5.2 震源在左側之分析結果與討論103
    5.2.1 滑動角為0°103
    5.2.2 滑動角為35°110
    5.2.3 滑動角為90°116
    5.2.4 小結123
    5.3 震源在右側之分析結果與討論123
    5.3.1 滑動角為0°123
    5.3.2 滑動角為35°130
    5.3.3 滑動角為90°136
    5.3.4 小結143
    第六章 鄰近不規則地震基盤對凹處區地表地震動的影響179
    6.1 前言179
    6.2 弱震之分析結果與討論179
    6.2.1 滑動角為0°179
    6.2.2 滑動角為35°180
    6.2.3 滑動角為90°180
    6.3 強震之分析結果與討論181
    6.3.1 滑動角為0°181
    6.3.2 滑動角為35°182
    6.3.3 滑動角為90°182
    6.4 小結183
    第七章 結論與建議195
    7.1 結論195
    7.2 建議196
    參考文獻197
    Reference Akamatsu, J., H. Saito, M. Jido, H. Morikawa, K. Nishimura, and M. Komazawa (1996). "Effects of irregular bedrock configuration in a sedimentary basin on ground vibration characteristics," proceeding of 11th World Conference on Earthquake Engineering, No. 1655.
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    Gottschammer, E. and K. B. Olsen (2001). "Accuracy of the explicit planar free-surface boundary condition implemented in a fourth-order staggered- grid velocity-stress finite-difference scheme," Bull. Seism. Soc. Am. 91, 617-623.
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    Ohbo, N., T. Iwatate, F. Yagishita, and M. Shibata (1995). "Case studies of lateral geological inhomogeneity and wooden house damage during past earthquake in Japan," proceedings of 10th European Conference on Earthquake Engineering, vol. 1, 399-404.
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    Tanaka, K., O. Kurimoto, and N. Fukuwa (2000). "Effects of underground topographical irregularity to seismic amplification in the Nobi plain," proceeding of 12th World Conference on Earthquake Engineering, No. 805.
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    日本建築学会,1992。¬¬「地震荷重-その現状と将来の展望」。
    坂井康伸,2001。「有限差分法を用いた京都盆地のやや長周期地震動の評価」,京都大学修士論文。
    涂正憲,2007。「不規則地震基盤對地表地震動的影響」,國立中央大學碩士論文。
    張玉,2005。「電磁場並行運算」,西安電子科技大學出版社,第148-154頁。
    都志輝,2001。「高性能計算並行編程技術─MPI並行程序設計」,清華大學出版社。
    Advisor
  • Huei-Tsyr Chen(陳慧慈)
  • Files
  • 963202010.pdf
  • approve immediately
    Date of Submission 2008-12-12

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