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| 題 名 | 邊界元素法在岩盤工程上之應用=Applications of Boundary Element Method in Rock Engineering |
|---|---|
| 作 者 | 壽克堅; | 書刊名 | 地工技術 |
| 卷 期 | 138 2013.12[民102.12] |
| 頁 次 | 頁39-46 |
| 專 輯 | 岩盤工程與岩盤數值分析 |
| 分類號 | 442.9 |
| 關鍵詞 | 邊界元素法; 岩石力學; 岩盤工程; 隧道工程; 斷層應力分析; Boundary element method; Rock mechanics; Rock engineering tunnel engineering; Fault analysis; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 數值分析方法隨電腦功能大幅提升廣泛應用在大地工程及岩盤工程之設計分析,常用之數值方法有有限元素法、有限差分法、邊界元素法、及離散元素法等。邊界元素法因只需對定義域之邊界進行離散及佈設元素,因此問題得以簡化並大大減少分析運算所需時間;對於大地工程及岩盤工程常見之無限域或半無限域固體力學問題相當適用。至於岩盤工程常見之弱面,也可藉由特殊之裂紋尖端元素或位移不連續元素來進行分析。 本研究以岩盤工程常見之邊界元素法,利用虛擬應力元素及位移不連續元素,探討二維及三維岩盤工程問題。探討之問題包括隧道開挖與邊坡互制行為分析、活斷層系統之大地應力分析、隧道穿越弱面之應力應變分析、以及隧道開挖周邊破裂區發展模擬等。邊界元素法對於日趨複雜之大地工程及岩盤工程問題,應仍具相當之適用性及優越性。 |
| 英文摘要 | Numerical analysis is getting popular in the design of geotechnical engineering and rock engineering due to the development of computers. The popular numerical methods include finite element method, finite difference method, boundary element method, and discrete element method. Since the discretization and elements are limited on the boundary of the domain, the problem is simplified and can be more efficiently calculated. Also, it is very suitable for the finite and semi-infinite domain problem which is popular in geotechnical engineering and rock engineering. In addition, the weak planes which is very common in rock engineering, can be treated by special boundary elements, i.e., displacement discontinuity element or crack tip element. In this study, the most common indirect boundary element method, applying fictitious stress element and displacement discontinuity element, were applied for the analyses of 2D and 3D rock engineering problems. The typical problems, including the tunnel-slope interaction, the analysis of active fault system, the analysis of tunneling through a weak plane, and the analysis of fraction zones adjacent to the tunneling face, were adopted and analyzed. The results reveals the applicability and efficiency of the boundary element. However, new developments with new components, e.g., stochastic theory and in-time visual capability, for the complicated rock engineering problems are possible and suggested. |
本系統中英文摘要資訊取自各篇刊載內容。