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論文中文名稱:土壓平衡式潛盾隧道通過軟弱岩盤之三維分析 [以論文名稱查詢館藏系統]
論文英文名稱:Analysis of Weak Rock Profile Deformation for Earth Pressure Balance (EPB) Shield Tunneling [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:工程學院
系所名稱:土木工程系土木與防災碩士班
畢業學年度:106
畢業學期:第二學期
出版年度:107
中文姓名:邱柏嘉
英文姓名:Po-Chia Chiu
研究生學號:105428017
學位類別:碩士
語文別:中文
口試日期:2018/07/17
論文頁數:109
指導教授中文名:陳水龍
口試委員中文名:陳水龍;謝百鈎;李勝宗;何政道
中文關鍵詞:潛盾隧道岩體分類地表沉陷有限元素
英文關鍵詞:Shield TunnelingRock massGround settlementFinite Element Methods
論文中文摘要:由潛盾隧道結構的開挖引起的岩盤變形,其影響因素甚多,時下雖說潛盾隧道於大地工程中,已有眾多國內外學者針對其變形行為進行相關理論之研究,但對於具備非連續變形性質之複雜岩盤,單以工程理論計算及統計型之經驗式,當遇上計算繁雜及人為考慮不及之因素,進一步導致模型適應性及計算應用之誤差。而仰賴有限元素法理論應用之Plaxis 3D套裝軟體發展成熟,得以計算非線性模型中,模擬現況所遇上複雜繁瑣之變形問題,並針對其應力及應變趨勢進行分析。本文以探討案例「桃園國際機場聯外捷運系統延伸至中壢火車站CM01區段標工程」其所處之桃園台地群環境,模擬潛盾隧道造成之地表沉陷量變形情形,將其沉陷之縱向、橫向變形量曲線與現場監測儀器進行比對。並分析採用適用岩體分類之HOEK-BROWN模式時,將達到比起傳統採用莫爾庫倫更精準之結果。而若是模擬潛盾機開挖時,機體本身存在時需增添考量盾尾灌漿、千斤頂推力及面盤壓力等影響,而其將造成縱向之沉陷曲線更趨於一沉陷穩定值,藉此研究探討適合於岩盤內隧道開挖之模擬形式,並做為後續相似案例模擬時之參考。
論文英文摘要:Although there are lots of domestic and foreign scholars have conducted theoretical researches on the deformation behavior in terms of the excavation of shield tunnel, the deformation of the bedrock caused by the excavation of the shield tunnel structure has many influencing factors. However, the complex bedrocks with non-continuous deformation properties which are calculated based on the empirical formulas of engineering theory and the experience with statistical type can lead to the errors of the model adaptability and calculation application when the situation is complicated and the factors that cannot be taken into account.
The software of Plaxis3D relied on the application of Finite Element Methods which has been developed fully can be applied to calculate the complex deformation problems taking place in the simulation of nonlinear models and to analyze the stress and strain trends. This study discusses the case of “The project of MRT system extending from Taoyuan International Airport to CM01 sector of Zhongli train station”, and compares the longitudinal and lateral deformation curves with on-site monitoring instruments by simulating the deformation of ground subsidence caused by shield tunnel. Also, analyzing the HOEK-BROWN pattern by using the rock mass can obtain more accurate results in comparison of that calculated with traditional Mohr-coulomb criterion. However, the influences of shield tail grouting, jack thrust, pate pressure and others shall be taken into account when simulating shield machine to excavate, which makes the vertical subsidence curve be stable. Such research will be suitable for the simulation pattern of tunnel excavation in bedrock and can be viewed as a reference for similar case simulation subsequently.
論文目次:摘 要 iii
ABSTRACT iv
誌 謝 vi
目 錄 vii
表目錄 x
圖目錄 xi
第一章 緒論 1
1.1研究動機 1
1.2研究目的 2
1.3研究方法與流程 2
1.4論文架構 4
第二章 文獻回顧 5
2.1隧道開挖行為之影響 5
2.1.1 隧道沉陷預估 7
2.1.2 隧道在軟弱岩盤中的開挖效應 12
2.2 岩石材料特性 16
2.2.1 岩石強度 16
2.2.2 莫爾庫倫與HOEK-BROWN之參數轉化 23
2.3隧道模型邊界 29
2.4 模擬機械化開挖之影響 31
2.4.1 灌漿壓力對沉陷之影響 32
2.4.2 模擬機身之行為 35
第三章 工程概述與監測儀器分布情形 44
3.1工程概述 44
3.2 潛盾隧道施工情形 46
3.2.1 設計標準與規範 46
3.2.2 潛盾隧道斷面設計 46
3.2.3 潛盾隧道環片規格 48
3.3地質概況 50
3.3.1 鑽探調查 50
3.3.2 基址地層分布 54
3.4 監測儀器 57
3.4.1 監測系統管理 57
3.4.2 監測儀器介紹 57
3.4.3 監測儀器佈設圖 59
3.4.4 監測頻率 60
第四章 數值分析方法與模式簡介 62
4.1 Plaxis 3D程式簡介 62
4.1.1 PLAXIS 應用於大地工程 63
4.1.2 有限元素分析方法 64
4.2 土壤模式 65
4.2.1 莫爾-庫倫模式 65
4.2.2 HOEK-BROWN模式 67
4.3 隧道開挖分析流程概述 77
第五章 隧道開挖分析及探討 84
5.1 地層參數 84
5.1.1 莫爾-庫倫模式材料參數(MOHR-COULOMB) 84
5.1.2 HOEK-BROWN模式材料參數 85
5.2 隧道環片參數 86
5.3 模擬機械化開挖之分析 87
5.4 莫爾庫倫及HOEK-BROWN模式之比較 92
5.5 其他因素對於模擬成果之影響 94
5.5.1 波松比之影響 94
5.5.2 環片收縮率之影響 97
5.6 隧道內部變形之影響 98
第六章 結論與建議 101
6.1 結論 101
6.2 建議 102
參考文獻 103
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