研究生: |
周伯融 Bo-Rung Chou |
---|---|
論文名稱: |
一組規則節理岩盤承受建物荷重之數值模擬與試驗對比細化 Numerical Simulation of Foundation on Regular Jointed Rock and Experinental Refinement |
指導教授: |
陳志南
Chee-Nan Chen |
口試委員: |
陳堯中
none 陳立憲 none 林志森 none |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2009 |
畢業學年度: | 97 |
語文別: | 中文 |
論文頁數: | 227 |
中文關鍵詞: | 數值模式 、節理 、等壓力分佈 、位移 |
外文關鍵詞: | Numerical Models, Joints, isostress distribution, displacement |
相關次數: | 點閱:173 下載:4 |
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本研究為利用數值分析探討一組規則節理岩盤承受建物荷重之應力傳播與變形分佈,根據Gaziev & Erlikhman (1971)對節理岩盤進行之基礎與節理配置試驗,利用UDEC軟體建立數值模式,考量相同建物建在好中壞三種不同岩盤之情況下,得到應力傳播與變形分佈,並與Gaziev & Erlikhman 試驗壓力分佈趨勢加以對比細化,及加上定量分佈說明。研究範圍包含一組規則節理岩盤之七種不同傾角變化(0°、15°、30°、45°、60°、75°、90°)、三種不同岩盤與基礎勁性相互作用變化、三種節理勁度比變化等等,分析結果在應力方面提出Δσ1/q=(0.9、0.7、0.5、0.3)之等壓線分佈範圍(深度、寬度)量化數據,在位移方面就垂直與水平等位移歸納節理錯動分佈模式。
本研究得到幾項重要特點,首先以數值分析結果得到應力分佈圖並與Gaziev & Erlikhman 試驗定性圖表對比,第二分析歸納節理上位移錯動分佈模式,第三由Gaziev & Erlikhman 試驗圖表提出定量說明。
The paper discusses the stress and displacement distribution in regular jointed rock subjected to foundation loading by numerical analysis. Gazeive and Erlikhamn had experimented the foundation and joint configuration for the joint rock in 1971. Based upon their experiment qualitative results and by utilizing the code UDEC to establish numerical mode. The stress propagation and displacement distribution under the situation of the same building to build in varies rock are analyzed. Seven angles of rock joint dip ranging 0, 15, 30, 45, 60, 75 and 90 degrees are selected. Three interactions between the structure and its rock foundation and three ratio of normal and shear stiffness are analyzed, The results of analysis include the equalized stress, Δσ1/q=(0.9, 0.7, 0.5, 0.3) contours and joint dislocation distribution pattern both on the equalized vertical and horizontal displacement contours.
The study has shown the important features. The first is to compare the numerical stress results with Gazeive and Erlikhamn experiment qualitative charts. The second is to analyze the displacement distribution and summarize the joint dislocation distribution pattern. The third is to propose the quantitative refinements to Gazeive and Erlikhamn experiment qualitative charts.
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