博碩士論文 963202010 詳細資訊


姓名 郭明倫(Ming-Lun Kuo)  查詢紙本館藏   畢業系所 土木工程學系
論文名稱 考慮地震基盤之局部不規則性的三維地震動分析
(Three-Dimensional Analysis of Ground Motion Considering the Local Irregularity of Earthquake Bedrock)
檔案 [Endnote RIS 格式]    [Bibtex 格式]    [檢視]  [下載]
  1. 本電子論文使用權限為同意立即開放。
  2. 已達開放權限電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。
  3. 請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。

摘要(中) 近年來幾次的大地震皆顯示地震基盤的形狀與分佈深度對於地表地震動的特性有很大的影響,因此要瞭解一個區域的地表震動特性,必須要考慮地震基盤和土層的三度空間分佈的狀況。
複雜的土層和地震基盤分佈讓使用嚴密的數學分析地表震動特性在目前仍有很大的困難,而必須訴諸數值分析方法。本研究採用交錯網格有限差分法(staggered-grid finite-difference method),結合平行運算的技術所發展完成的分析程式FDM3D,進而模擬三維土層在彈性模式下的受震反應。
由分析結果顯示,同一場址受到不同強度的地震作用,會有不同的地震動特性,即表示用弱震的分析結果來預估強震的反應的作法並不適當。另外根據本研究的分析結果再一次的說明地下結構的重要性,而且若想了解某場址的地震動特性必須對該場址鄰近2-3公里範圍內的地震基盤必須要有詳細的了解。
摘要(英) 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.
關鍵字(中) ★ 平行運算
★ 交錯網格有限差分法
★ 彈性模式
★ 三維
★ 地下結構
關鍵字(英) ★ elastic model
★ parallel computing
★ staggered-grid finite-difference method
論文目次 摘 要 I
Abstract III
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 Cluster 18
3.3.2 標準平行化程式庫MPI 18
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
參考文獻 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.
Cerjan, C., D. Kosloff, R. Kosloff, and M. Reshef (1985). "A nonreflecting boundary condition for discrete acoustic and elastic wave equations," Geophysics 50, 705-708.
Clayton, R. W. and B. Engquist (1977). "Absorbing boundary conditions for acoustic and elastic wave equations," Bull. Seism. Soc. Am. 67, 1529- 1540.
Dravinski, M. (2007). "Scattering of waves by a sedimentary basin with a corrugated interface," Bull. Seism. Soc. Am. 97, 256-264.
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.
Graves, R. W. (1996). "Simulating seismic wave propagation in 3-D elastic media using staggered-grid finite differences," Bull. Seism. Soc. Am. 86, 1091-1106.
Levander, A. R. (1988). "Fourth-order finite-difference P-SV seismograms," Geophysics 53, 1425-1436.
Motosaka, M., M. Nagano (1997). "Analysis of amplification characteristics of ground motions in the heavily damaged belt zone during the 1995 Hyogo-Ken Nanbu earthquake," Earthquake Engineering and Structural Dynamics, 26, 377-393.
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.
Pitarka, A. (1999). "3D elastic finite-difference modeling of seismic motion using staggered grids with non-uniform spacing," Bull. Seism. Soc. Am. 89, 54-68.
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.
Virieux, J. (1986). "P-SV wave propagation in heterogeneous media: velocity-stress finite-difference method," Geophysics 51, 889-901.
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。
指導教授 陳慧慈(Huei-Tsyr Chen) 審核日期 2008-12-12
推文 facebook   plurk   twitter   funp   google   live   udn   HD   myshare   reddit   netvibes   friend   youpush   delicious   baidu   

若有論文相關問題,請聯絡國立中央大學圖書館推廣服務組 TEL:(03)422-7151轉57407,或E-mail聯絡