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研究生: 何沅俊
Yuan-Jun Ho
論文名稱: 桃園地區卵礫石深開挖工程之特性研究
The study of characteristics of excavation in cobble and gravel in Taoyuan
指導教授: 鄧福宸
Fu-Chen Teng
熊彬成
Bin-Chen Hsiung
口試委員: 楊國鑫
Guo-Xin Yang
鄭世豪
Sai-Ho Cheng
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: 2022
畢業學年度: 110
語文別: 中文
論文頁數: 132
中文關鍵詞: 卵礫石中的深開挖數值分析離心機試驗參數研究
外文關鍵詞: Deep excavation in gravel, Numerical Analysis, Centrifuge test, Parametric study
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本研究選擇桃園某深開挖案例進行研究,希望釐清桃園地區卵礫石開挖特性,並檢視相關設計參數,透過數值分析以及離心機試驗進行研究,再將結果與現場的監測資料做對比。桃園地區地層屬於卵礫石,而在礫石層開挖的設計與參數選取在過去都較缺乏系統性研究,故預期透過相關研究結果可更加了解在卵礫石中開挖引致的行為。此外本研究以一系列之參數研究來探討摩擦角、擋土結構的貫入深度、系統勁度、支撐勁度以及支撐的數量等變數在不同開挖條件下對開挖行為造成的影響。無論是數值分析或是離心機試驗的結果,或者觀察參數研究成果變化之情形下,擋土牆開挖引致位移量與支撐所需承受的荷重都非常有限,故建議在開挖細節上似乎還有許多可以調整的空間,所以本研究期望透過數值分析的結果去提供更經濟的設計。


A deep excavation located in Taoyuan was selected and it aims to clarify the characteristics of the deep excavation in cobble and gravel in this area and to review the relevant design parameters. It is aware that the soil stratum in Taoyuan area mainly consists of gravel material but the absence of literature and researches to explore the characteristics of deep excavations in similar ground, such as design details and parameters is understood too so this study aims to examine the behaviours induced by deep excavations in gravel. Results of numerical analyses and centrifuge tests are taken and compared with field monitoring data to validate these behaviours. Further, a series of parametric studies were carried out to evaluate impacts from various variants, such as friction angle, penetration depth of retaining structure, stiffness of overall system and ground support, as well as number of props on behaviors induced by deep excavations in gravel. No matter from results of numerical analyses and centrifuge tests, it is known that induced displacements and strut loads are limited under all conditions and it is thus suggested that engineering details could possibly be further adjusted.

第一章 緒論 第二章 文獻回顧 第三章 案例介紹 第四章 離心機試驗 第五章 數值分析 第六章 卵礫石中開挖之參數研究 第七章 結論與建議

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