研究生: |
陳思宇 Ssu-Yu Chen |
---|---|
論文名稱: |
圓形隧道於單一節理岩體中開挖之力學行為探討 The Mechanical Behavior of Circular Tunnel Excavation in Single Joint Rock Mass |
指導教授: |
陳志南
Chee-Nan Chen |
口試委員: |
彭桓沂
none 林志森 none 陳堯中 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: | 2015 |
畢業學年度: | 103 |
語文別: | 中文 |
論文頁數: | 94 |
中文關鍵詞: | 隧道 、節理 、開挖 |
外文關鍵詞: | Tunnel, Joint, Excavation |
相關次數: | 點閱:271 下載:4 |
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隧道是所有土木工程中與地質關係最密切者,只要岩體中存有節理(或弱面),整體岩盤工程行為就常由節理來主控。理論公式常將岩盤假設為均質、等向,開挖之隧道斷面形狀亦多侷限為圓形(如Kirsch公式),致與岩盤工程間之設計分析都不易相互套用,故需要另外之工具與方法來進行仿真模擬。本研究以UDEC二維數值分析程式,對圓形隧道進行開挖模擬,並引入岩體力學行為中方向性最強的單一節理,就其位於不同空間方位對隧道之影響進行探討,並與無節理情況進行比較,研究結果希望能提供一條節理對隧道開挖影響之預判能力,及更多節理分佈影響之推理。
Tunneling is the work in civil engineering that surrounding geological condition plays a very important role. Plane of weakness or joints dominate the construction behavior in rock mass. It is always assumed that tunneling rock is homogeneous and isotropic for most theoretic formulas such as Kirsch formula, and tunnel cross-section shape is circle. The ideal assumption can’t fit most practical conditions in construction design and analysis. Therefore, it has to stimulate in other ways. This study use two-dimensional numerical software UDEC to stimulate the excavation of circular tunnel. Single joint cutting circular tunnel with different orientations is simulated based on single joint has the strongest anisotropy. The tunneling mechanical behavior both single joint condition and no joint condition are analyzed and compared. Some conclusions and suggestion are presented for the practical design, constructions, and monitoring.
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