| 研究生: |
羅偉銘 Luo, Wei-ming |
|---|---|
| 論文名稱: |
考量基礎地盤變形下檔土牆行為之模型試驗 Experimental study on the behavior of soil retaining walls situated on deformable grounds |
| 指導教授: |
黃景川
Huang, Ching-Chuan |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2007 |
| 畢業學年度: | 95 |
| 語文別: | 中文 |
| 論文頁數: | 100 |
| 中文關鍵詞: | 基礎 、擋土牆 |
| 外文關鍵詞: | foundation, wall |
| 相關次數: | 點閱:54 下載:4 |
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在山坡地開發工程中,邊坡穩定極為重要。擋土牆為廣泛使用之結構物。一般擋土牆設計中,並未考慮地盤沉陷的影響。本研究利用彈簧模擬不同勁度的地盤,以了解不同勁度的地盤上擋土結構物的變化。
本研究除了利用彈簧模擬不同勁度的地盤外,並建立懸臂式及加勁式兩種擋土牆。背填土以長150mm直徑2mm的鋼針模擬2-D顆粒性土壤,並於背填土上方加載,利用雙軸向荷重計及變位計量測地盤沉陷、擋土牆受力、變位、破壞等行為。
本研究發現地盤勁度較小,擋土牆受力、變位等皆較大。比較懸臂式和加勁式擋土牆,懸臂式擋土牆在受力及變位等各方面皆較高,因此加勁擋土牆在不同勁度地盤下穩定性較懸臂式檔土牆為佳。
In the study, a two-dimensional model retaining wall system was established. The backfill and foundation of the retaining walls were construced by stacking 2mm 150mm steel rods. In this model, we can observe the location of failure surface and behavior of retaining structure on two modes of foundation deformation:cofficient of subgrade reaction is 0.01 N/mm3 and 0.005 N/mm3, settlement under the base of the wall, and settlement under the backfill of the wall.
The results show that the influence of settlement in kv = 0.005 N/mm3 of the wall on retaining walls are most apparent. In this mode, it generated the highest increment of the lateral pressure, and more settlement at the crest of the backfill.Therefore, for analysis of earth retaining structure, it must take into the account of the influence of foundation settlement on the whole behavior.
1.Bowles, J.E. (1988) “Foundation Analysis and
Design” ,4thed. ,McGraw-Hill Book Co.
2.Coulomb, C.A. (1776)“Essai sur Application des Regles
de Maximis et Minimis a quelques Problem de
Statique,relatifs a 1‘Architecture, ” Mem.Roy.des
Sciences. Paris, Vo1. 3, 38.
3.Das, B.M. (1998)“Principles of Geotechnical
Engineering”, ed, PWS Publishing Company,U.S.A..
4.Huang, C.C. (1998) “Investigation of the local strains
in a geosynthetic composite”Geotextiles and
Geomembranes 16 (1998), pp.175-193.
5.Huang, C.C., Meng, F.Y. and Chou, Y.C. (1999) “The
effect of the bending rigidity of a wall on lateral
pressure distribution ”Canada Geotech.J.Vol 36,
pp.1039-1055.
6.Huang, C.C. and Wu, S.H. (2006) “Simplified approach
for assessing seismic displacements of soil-retaining
walls- (I) Geosynthetics-reinforced modular blocks walls
“ Geosynthetics International, Vol. 13, No. 6, pp. 219-
233.
7.Huang, C.C. (2000) “Invesigation of soil retaining
structures damaged during the CHI-CHI (Taiwan) Earthquake
“ Journal of the Chines Institute of Engineers, Vol.
23,No. 4,pp. 417-428 (2000).
8.Rowe, P.W. (1961)“The Stress-Dilatancy Relation for
Static Equilibrium of An Assembly of Particles in
Cntact”Proc. Roy. Soc. A, 269, 500-521.
9.Terzaghi, K.(1941)“General Wedge Theory of Earth
Pressure, ”ASCE Transaction, pp. 68-88.
10.Terzaghi, K.(1955)“Evaluation of Coefficients of
Subgrade Reaction” ,Geotechnique,5,No. 4,pp. 297-326.
11.李咸亨、芮嘉航 (1990) “大變形量不織布之大型力學試驗”,
國立臺灣工業技術學院營建工程技術研究所碩士論文。
12.李咸亨 (1990) “地工織物加勁擋土牆應力分佈”, 地工技術,
第32期,第5-12頁。
13.孟繁羽 (1996) “探討壁面勁度與主動土壓力關係之鋼針模型試
驗”,國立成功大學土木工程研究所碩士論文。
14.夏守信 (1994) “加勁材之延展性對加勁擋土牆行為影響之研
究”,國立成功大學土木工程研究所碩士論文。
15.畢吳翊 (2006) “探討可變形基礎地盤上方擋土結構之行為”,
國立成功大學土木工程研究所碩士論文。
16.蔡聖仁 (1996) “土壤加勁材料之應變量測”,國立成功大學土
木工程研究所碩士論文。
17.鄭智元 (1994)“加勁式擋土牆破壞模式之模型試驗與穩定分
析”,國立成功大學土木工程研究所碩士論文。