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題名 | 砂土層中單隧道周圍土壓力的分佈與穩定性分析=Earth Pressure Distribution and Tunnel Stability When Tunneling in Sandy Ground |
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作者姓名(中文) | 江國輝; 陳秉嵩; 林煒倫; 李崇正; 陳慧慈; | 書刊名 | 臺灣公共工程學刊 |
卷期 | 2:1 民95.06 |
頁次 | 頁37-48 |
分類號 | 441.12 |
關鍵詞 | 隧道穩定性; 土壓力; 土壤漏失; 離心模型試驗; Tunnel stability; Earth pressure; Ground loss; Centrifuge modeling; |
語文 | 中文(Chinese) |
中文摘要 | 本研究利用離心模型試驗,模擬砂土層中進行單隧道開挖時,周圍土壓力的分佈與隧道的穩定性。模型隧道以體積控制的方式,進行隧道開挖引致土壤漏失之模擬。本文探討:(1)在不同土壤漏失量時,隧道周圍之土壓力分佈型態及其演化過程;(2)隧道崩垮型態及塑性鬆動區的發展與土壤漏失量之關係;(3)隧道側壁上方不同深度處,水平土壓力的大小及其變化,來探討與隧道穩定性的關係。 |
英文摘要 | A Series of centrifuge model tests with intensive measurements of the earth pressures were performed to evaluate the distribution of earth pressure around the tunnel and the tunnel stability when funneling in sandy ground. The volume-controlling method was used to simulate the ground loss during tunneling event. The study discusses the following three topics: (1) the changes of and the evolution of the horizontal and vertical earth pressures around a tunnel at various ground losses; (2) the propagations of the plastic and loosening zone at various ground losses; (3) the evaluation of tunnel stability using the evolution of the horizontal earth pressures at various depths along the line above the side walls of tunnel. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。