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論文中文名稱:大範圍無支撐深開挖三維數值探討 [以論文名稱查詢館藏系統]
論文英文名稱:Three-Dimensions Numerical Analysis of Large-Scale Unsupported Excavation [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:蔡阜桓
英文姓名:FU-HUAN TSAI
研究生學號:105428019
學位類別:碩士
語文別:中文
口試日期:2018/07/17
論文頁數:113
指導教授中文名:陳水龍
口試委員中文名:陳水龍;倪至寬;葛宇甯;何政道
中文關鍵詞:深開挖無支撐背拉版有限元素法分區開挖地中壁
英文關鍵詞:Deep ExcavationUnsupportedBack pullFEMZoned excavationCross Wall
論文中文摘要:本研究主要針對大範圍無支撐深開挖的案例去進行三維有限元素法分析,使用PLAXIS 3D軟體進行模擬;本案例因為開挖的面積非常的廣大,基地周圍緊鄰捷運,為了保護周邊的環境,採用周邊逆打中央順打,為了瞭解此種工法的效益及安全性,針對背拉版、分區開挖及地中壁對於抑制連續壁變形量的影響去進行研究。
根據研究結果顯示基地內的分區開挖則能有效的抑制基地內長邊的連續壁整體的側向變位,減少在開挖過程中對於基地周邊結構物的影響,增加了施工的整體安全性;有施作背拉版能夠有效的降低連續壁頂端之變形量,並且有效的增加結構整體的勁度;地中壁的部分則因為長度過長是否能發揮其效益,結果顯示本基地的地中壁效果仍然非常的顯著,抑制了基地長向側連續壁的側向變形;藉由此研究後的模擬結果,也能提供後續設計者一個參考。
論文英文摘要:The study mainly aims at analyzing three-dimensional finite element method for large-scale unsupported excavation and simulating with the software of PLAXIS 3D. In consideration of the protection of surrounding environment, this case employs top-down method for excavating along the perimeter and bottom-up method for excavating in the center due to the fact that the area excavated near the MRT is very large. Also, in order to know how this construction method can be effective and safe, this study will analyze in accordance with the effect of back-pull plate, zoned excavation and the amount which the cross wall can suppress the deformation of the continuous wall.
The study shows that the zoned excavation in the base can effectively suppress the lateral displacement of the entire diaphragm wall, reduce the effect on the surrounding structure during the excavation process and help enhancing the overall safety of the construction. The application of back-pull plate is effective for reducing the deformational at the top end of the diaphragm wall and improving the overall stiffness of the structure; whether the cross wall can exert its benefits due to the longer length, whereas, the results show that the effect of the cross wall of the base is still very significant, and it inhibits the lateral deformation of the long-side diaphragm wall of the base. The simulated result concluded through this research also can be viewed as a reference for subsequent designers.
論文目次:目錄
摘要 i
ABSTRACT ii
目錄 v
圖目錄 vii
表目錄 x
第一章 緒論 1
1.1 研究動機與目的 1
1.2 研究方法與內容 2
1.3 論文架構及流程概述 2
第二章 文獻回顧 4
2.1 周邊逆打中央順打工法 4
2.2 分區開挖的影響 8
2.2.1數值分析在分區開挖之應用 9
2.3 深開挖導致擋土壁側向變形 12
2.3.1 擋土壁體變形之型態 12
2.3.2 影響擋土壁體位移因素 14
2.4 數值分析在深開挖工程之應用 16
2.5 角隅的運用 27
2.6 扶壁種類 27
2.6.1界面接合方式 31
第三章 數值模擬與監測資料之驗證 35
3.1 案例介紹 35
3.1.1土層概況 36
3.1.2 連續壁設置 45
3.1.3監測系統介紹 47
3.2數值模擬介紹 48
3.2.1 模型設置 48
3.2.2土壤參數選用 49
3.2.3 結構參數 56
3.2.4道路及鄰近結構物載重參數設置 60
3.2.5分區開挖 62
3.3施工步驟 67
3.4分析結果與案例驗證 71
第四章 案例研究 77
4.1開挖的影響 77
4.1.1分區開挖的影響 77
4.1.2逐層開挖的影響 83
4.2背拉版的施作成效 88
4.3地中壁施作效益 93
第五章 結論與建議 98
5.1結論 98
5.2建議 99
參考文獻 101
附錄A 104
附錄B 110
論文參考文獻:[1] Ming-Guang Li, Zhong-Jie Zhang, Jin-Jian Chen, Jian-Hua Wang, An-Jun Xu, 2017, “ Zoned and staged construction of an underground complex in Shanghai soft clay”. Tunnelling and Underground Space Technology Volume 67, August 2017, pp. 187-200.
[2] Clough G.W., O’Rourke ,T.D., 1990, “Construction-Induced Movements of Insitu walls” . Geotech. Spec. Publ. No.25-Design and Performance of Earth Retaining Structure, American Society Civil Engineers, New York, pp.439-470.
[3] Shih-Hsuan Wu, Jianye Ching, Chang-Yu Ou, 2013, “Predicting Wall Displacements for Excavations with Cross Walls in Soft Clay”.Journal of Geothchnical and Geoenvironmental Engineering, 2013.139(6), pp.914-927.
[4] Chang-Yu Ou, Pio-Go Hsieh, Yi-Lang Lin, 2011, “Performance of Excavations with Cross Walls”. Journal of Geothchnical and Geoenvironmental Engineering, 2011.137(1), pp.94-104.
[5] Hsieh P.G., Ou ,C. Y., Hsieh W.H., 2016,” Efficiency of excavations with buttress walls in reducing the deflection of the diaphragm wall ” .Acta Geotechnica , 11:1087-1102.
[6] Mohammad Bahrami, Mohammad Iman Khodakarami, Abdolhosein Haddad, 2018, “3D numerical investigation of the effect of wall penetration depth on excavations behavior in sand”. Computers and Geotechnics, Volume 98, June 2018, pp.82-92.
[7] Tuan-Nghia Do, Chang-Yu Ou, Aswin Lim, 2013, “Evaluation of Factors of Safety against Basal Heave for Deep Excavations in Soft Clay Using the Finite-Element Method”. Geotechnical and Geoenvironmental Engineering, 2013, 139(12), pp.2125-2135
[8] Chhunla Chheng, Suched Likitlersuang, 2018, “ Underground excavation behaviour in Bangkok using three-dimensional finite element method”. Computers and Geotechnics, Volume 95, March 2018, pp. 68-81
[9] Bin-Chen Benson Hsiung, Kuo-Hsin Yang, Wahyuning Aila, LouisGe, 2018, “ Evaluation of the wall deflections of a deep excavation in Central Jakarta using three-dimensional modeling”. Tunnelling and Underground Space Technology, Volume 72, February 2018, pp. 84-96.
[10] Aswin Lim, Pio-GoHsieh, Chang-YuOu, 2016, “ Evaluation of buttress wall shapes to limit movements induced by deep excavation”. Computers and Geotechnics, Volume 78, September 2016, pp.155-170.
[11] S.S. Chuah, S.A. Tan, Harry, 2010, “ Numerical Study On A New Strut-Free Counterfort Embedded Wall In Singapore”. Earth Retention Conference3, pp.740-747.
[12] Aswin Lim, Chang-Yu Ou, 2017, “ Case Record of a Strut-free Excavation with Buttress Walls in Soft Soil”. Proceedings of the 2nd International Symposium on Asia Urban GeoEngineering, pp.142-154.
[13] Ou ,C.Y., Hsieh, P.G., Chiou D.C., 1993, “Characteristics of Ground Surface Settlement During Excavation”, Canadian Geotechnical Journal, Vol.36, pp.210-223.
[14] 何樹根、高世鍊,「都會區大範圍無支撐開挖案例」,地工技術雜誌第128期第89~98頁。
[15] 吳沛軫、王明俊、彭嚴儒,「連續壁變形行為探討」,第七屆大地工程學術研究討論會,1997,第601-608頁。
[16] 陳樂融,「鄰房對建築深開挖工程之影響」,碩士論文,國立台北科技大學土木與防災研究所,台北,2016。
[17]吳文福,「地中壁及扶壁應用於抑制連續壁變形之效率分析」,碩士論文,國立台北科技大學土木與防災研究所,台北,2017。
[18]盧怡志,「影響扶壁及地中壁行為施工特性之研究」,碩士論文,國立台北科技大學土木與防災研究所,台北,2007。
[19]倪至寬,「連續壁工程實務」詹氏書局,台北,2017。
[20]倪至寬,「基礎施工與品管」詹氏書局,台北,2014。
[21]劉國彬、王衛東主編,「基坑工程手冊第二版」中國建築工業出版社,北京,2009。
[22]歐章煜,「深開挖工程分析設計理論與實務」科技圖書,台北,2002。
[23]歐章煜,「進階深開挖工程分析與設計」科技圖書,台北,2017。
[24]歐章煜,「基礎開挖工程實務」科技圖書,台北,2018。
論文全文使用權限:同意授權於2019-08-08起公開