博碩士論文 88624012 詳細資訊




以作者查詢圖書館館藏 以作者查詢臺灣博碩士 以作者查詢全國書目 勘誤回報 、線上人數:8 、訪客IP:34.204.191.31
姓名 陳志昌(Jyh-Chang Chen )  查詢紙本館藏   畢業系所 應用地質研究所
論文名稱 FLAC程式應用於土壤邊坡穩定分析
(Stability Analysis of Soil Slopes Using FLAC)
相關論文
★ 沉箱式碼頭受震引致土壤液化之數值模擬★ 落石運動之模型試驗研究
★ 水平互層地盤之承載行為研究及承載力之預估★ 利用GIS進行廣域山區順向坡至逆向坡 之判別與潛勢評估–以北橫地區為例
★ 北橫公路復興至巴陵段岩石單壓強度之 初步預估模式
檔案 [Endnote RIS 格式]    [Bibtex 格式]    [相關文章]   [文章引用]   [完整記錄]   [館藏目錄]   [檢視]  [下載]
  1. 本電子論文使用權限為同意立即開放。
  2. 已達開放權限電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。
  3. 請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。

摘要(中) 由於地質狀況不佳和環境因素的影響,邊坡破壞已為台灣之主要地質災害,土壤邊坡主要為弧形破壞,極限平衡法則為最常使用之分析方法,其須先假設可能滑動面位置及破壞時土體為剛體,而本文另以變形分析程式FLAC做探討,其可考慮土體的變形性及張力強度的影響。
本文在探討土壤邊坡穩定性為主,係利用以有限差分法之觀念所寫成之分析程式FLAC進行研究,所分析之邊坡則分為完全乾燥邊坡與含地下水位面之邊坡做比較與討論。安全係數的訂定是以FLAC程式配合剪力強度折減公式所決定,再根據程式之輸出資料,判斷可能之破壞滑動面位置與邊坡穩定之安全係數,並與以極限平衡法之分析程式STABL做比較,亦以不同材料參數探討邊坡之穩定性。
FLAC程式與STABL程式分析所得之安全係數,在固定坡高而針對不同坡角之完全乾燥邊坡與含地下水位面邊坡分析下,所得結果比較:1) 由於STABL程式未考慮土體之變形性,且假設破壞實為完全剪力破壞,而FLAC在考慮不同之彈性模數與張力強度;2) 當邊坡坡角或地下水位面上升時,安全係數隨之下降;3) 在坡角大於60度、彈性模數小於1MPa下,FLAC所得之安全係數皆比STABL所得小5%以上;4) 當地下水位面上升時,FLAC與STABL所得之安全係數差異也隨之越大。
摘要(英) Because of its inferior geological conditions and environmental factors, geological hazards like landslides are of great concern in Taiwan. The stability of soil slopes which mainly involve arc-shape failure surfaces are used to be analyzed by the limit equilibrium method (LEM), presuming shear-dominant failure surface and rigid failed mass. The objective of this thesis is to investigate the same problem by use of a deformation analysis (FLAC), in which the deformability and tensile strength of soil mass can be considered.
The deformation analysis program used is the FLAC code, in which finite-difference scheme is employed for both the spatial and time domains. The corresponding factor of safety (FS) and failure surface are determined by the strength-reduction concept plus the displacement history of a control point and the maximum shear strain contour, respectively. Two slope models were examined in this thesis, including a completely dry soil slope and another having varying groundwater table. For all computation cases, Mohr-Coulomb law was adopted for soil mass and the slope height was kept constant, but with changing slope inclination, soil modulus (E), soil tensile strength (T0), and groundwater table. The most popular LEM slope stability code — STABL5 (using Bishop slice method) was also used for a comparison reason.
The analysis results are summarized as follows: 1) at the same slope inclination and groundwater table, FLAC yields a FS value and failure surface comparable to STABL5 for a soil mass with high modulus and infinite tensile strength; 2) as the slope inclination and/or groundwater table increase, the value of FS computed decreases; 3) when the slope inclination is greater than 60°, and E is smaller than 1MPa with limited value of T0, the value of FS computed by FLAC is lower by at least 5% than that by STABL5 (here, indicating the limitation of STABL5's application; 4) as the groundwater table increases, the difference in FS between FLAC and STABL5 becomes larger.
關鍵字(中) ★ FLAC程式
★  土壤邊坡穩定
★  地下水位面
★  安全係數
關鍵字(英) ★ factor of safety
★  FLAC program
★  groundwater table
★  Stability of soil slope
論文目次 中文摘要 I
英文摘要 II
誌謝 III
目錄 IV
表目錄 VII
圖目錄 VIII
第一章緒論 1
1.1前言 1
1.2研究動機與目的 1
1.3研究方法與範疇 2
1.4論文格式與內容 2
第二章文獻回顧 4
2.1邊坡破壞模式之種類 4
2.2極限平衡法 5
2.2.1 無限邊坡 6
2.2.2 側移滑動 7
2.2.3 弧形滑動 8
2.2.4 切片法 11
2.3極限分析法 18
2.4數值方法22
2.4.1 有限差分法 23
2.4.2 有限元素法 24
第三章研究方法 30
3.1以FLAC程式分析 30
3.1.1 FLAC理論架構 30
3.1.2 剪力強度折減 33
3.1.3 FLAC分析邊坡穩定說明 34
3.2以STABL程式分析 38
3.2.1 STABL理論架構 38
3.2.2 STABL分析邊坡穩定說明 40
第四章完全乾燥邊坡之穩定性分析 42
4.1分析條件 42
4.2土壤變形性之影響 42
4.2.1 FLAC與STABL分析所得之安全係數比較 42
4.2.2 坡角對安全係數之影響 43
4.2.3 彈性模數對安全係數之影響 43
4.3滑動破壞面位置之探討 45
4.4張力強度之影響 47
4.4.1 FLAC與STABL分析所得之安全係數比較 47
4.4.2 滑動破壞面之探討 47
4.4.3 STABL之適用性 47
第五章地下水位對邊坡穩定之影響 52
5.1分析條件 52
5.2FLAC於含地下水位邊坡穩定之分析方法 52
5.3地下水位及彈性模數之影響 54
5.3.1 FLAC與STABL分析所得知安全係數比較54
5.3.2 滑動破壞面位置之探討 54
5.4與完全乾燥邊坡之比較 57
5.5地下水位面位置對邊坡穩定之影響 59
第六章結論與建議 62
6.1結論 62
6.2建議 63
參考文獻 64
附錄A不同坡角之最大剪應變等值線圖 67
附錄B數值模擬輸入程式 80
參考文獻 李建中,1984,常用邊坡穩定分析程式簡介,地工技術,第二卷,第7期,第69~73頁。
吳偉特,1982,邊坡穩定分析方法與運用。
林四川、吳文隆、周功台,1993,邊坡穩定分析程式(STABL)應用之探討,地工技術,第十一卷,第41期,第12~27頁。
黃信元,1999,部份飽和土壤坡地穩定動態數值分析,國立台灣大學土木工程研究所碩士論文。
黃建祥1996,土壤邊坡應力分析與破壞潛能解析解之建立,私立淡江大學土木工程研究所碩士論文。
黃國品,1994,有限元素分析之安全係數研訂,國立台灣大學土木工程研究所碩士論文。

陳榮河,1987,邊坡穩定之分析方法,地工技術,第五卷,第17期,第70~84頁。
潘南飛,1998,下水位對邊坡穩影響之探討,明新學報,第27期,第127-131頁。
Bishop, A. W. (1955) “The Use of the Slip Circle in the Stability Analysis of Slopes,”Geotechnique, Vol. 5, No 1, pp.7-17.
Bromhead, E. N (1992) “The Stability of Slopes,” 2nd edition Blackie Academic and Professional, London.
Chen, W. F. (1975) “Limit Analysis and Soil Plasticity,” Elsevier., New York.
Cousins, Brain. F. (1978) “Stability Charts for Simple Earth Slopes,” Journal of the Geotechnical Engineering Division, Vol 104, No 4, pp.267-279.
Dawson, E. M., Roth, W. H. and Drescher, A. (999) “Slope Stability Analysis by Strength Reduction,” Geotechnique, Vol 49, No.6, pp.835-840.
Duncan J. M. (1995) “Limit Equilibrium and Finite-Element Analysis of Slopes,” Journal of Geotechnical Engineering, Vol 122, No 7, pp 577-596.
FLAC (1993), Fast Lagrangian Analysis of Continua, Version 3.2, Volume I:User’s Manual, Itasca Consulting Group Inc., U.S.A.
FLAC (1993), Fast Lagrangian Analysis of Continua, Version 3.2, Volume II:Verification Problems and Example Applications, Itasca Consulting Group Inc., U.S.A.
FLAC (1993), Fast Lagrangian Analysis of Continua, Version 3.2, Volume III:Appendices, Itasca Consulting Group Inc., U.S.A.
Fredlund, D. G. and Krahn, J. (1977) “Comparison of Slope Stability Methods of Analysis,” Candian Geotechnical Journal, Vol 14, pp.429-439.
Gasmo J. M., Hritzuk K. J., Leong E.C. and Rahardjo H. (1999) “Instrumentation of an Unsaturated Residual Soil Slope,” Geotechnical Testing Journal, Vol 22, No 2, pp 128-137.
Griffiths., D. V. and Lane., P. A. (1993) “Slope Stability Analysis by Finite Elements,” Geotechnique, Vol 49, No 3, pp 387-403.
Gasmo, J. M., Leong, E. C. and Rahardjo, H. (2000) “Infiltration Effects on Stability of a Residual Soil Slope,” Computers and Geotechnics, Vol.26, pp.145-165.
Huang, Soctt. L and Yamasaki, Kenji (1993) “Slope Failure Analysis using Local Minimum Factor-of-Safety Approach” Journal of Geotechnical Engineering, Vol 119, No 12, pp 1974-1987.
Janbu, N. (1973) “Slope Stability Computations in Embankment-Dam Engineering,” Casagrade Volume, Ed. R. C. Hirschfeld and S. J.Poulos, John Wiley and Sons.
Matsui T. and San K.C. (1992) “Finite Element Slope Stability Analysis by Shear Strength Reduction Technique,” Soils and Foundations, Vol 32, No 1, pp 59-70.
Michalowski R. L. (1995) “Slope Stability Analysis:a kinematical approach,” Geotechnique, Vol 45, No 2, pp283-293.
Morgenstern, N. R. and Price, V. E. (1965) “The Analysis of the Stability of General Slip Surfaces,” Geotechnique, Vol 15, No 1, pp.79-93.
Spencer, E. (1967) “A Method of Analysis of the Stability of Embankments Assuming Parallel Interslice Forces,”Geotechnique, Vol. 17, No. 1, pp.11-26.
Wright, S.G., Kulhawy, F. H.and Duncan, J. M. (1973) “Accuracy of Equilibrium Slope Stability Analysis,” Journal of the Soil Mechanics and Foundation Div., ASCE, SM10, PP.738-791.
指導教授 葛德治 審核日期 2001-7-5
推文 facebook   plurk   twitter   funp   google   live   udn   HD   myshare   reddit   netvibes   friend   youpush   delicious   baidu   
網路書籤 Google bookmarks   del.icio.us   hemidemi   myshare   

若有論文相關問題,請聯絡國立中央大學圖書館推廣服務組 TEL:(03)422-7151轉57407,或E-mail聯絡  - 隱私權政策聲明