東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Experimental and numerical investiga...

Hwang, Jea An.

Linked to FindBook

Google Book

Amazon

博客來

Experimental and numerical investigation of three-dimensional stability of slopes.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Experimental and numerical investigation of three-dimensional stability of slopes./
Author:	Hwang, Jea An.
Description:	229 p.
Notes:	Source: Dissertation Abstracts International, Volume: 61-07, Section: B, page: 3734.
Contained By:	Dissertation Abstracts International61-07B.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9979353
ISBN:	0599854235

Experimental and numerical investigation of three-dimensional stability of slopes.
Hwang, Jea An.

Experimental and numerical investigation of three-dimensional stability of slopes. - 229 p.

Source: Dissertation Abstracts International, Volume: 61-07, Section: B, page: 3734.

Thesis (Ph.D.)--University of Colorado at Boulder, 2000.

Slope stability problems are among the most commonly addressed problems in geotechnical engineering. Since Fellenius (1927) suggested the method of slices, several slice methods have been proposed attempting to permit a quantitative assessment of the stability of slopes. These conventional methods of slope stability analysis are mainly based on the concept of limiting equilibrium. The limiting equilibrium concepts have been expanded to accommodate three-dimensional features of slopes and several 3-D slope stability methods have been proposed in the literature, ranging from a rough approximation method (weight average method suggested by Sherard, 1963) to a rigorous method (generalized 3-D stability method using columns by Fredlund and Lain, 1992).

ISBN: 0599854235Subjects--Topical Terms:

783781
Engineering, Civil.

Experimental and numerical investigation of three-dimensional stability of slopes.
LDR:03561nmm 2200313 4500 001 1818961
005 20060920092644.5
008 130610s2000 eng d
020 $a 0599854235
035 $a (UnM)AAI9979353
035 $a AAI9979353
040 $a UnM $c UnM
100 1 $a Hwang, Jea An. $3 1908264
245 1 0 $a Experimental and numerical investigation of three-dimensional stability of slopes.
300 $a 229 p.
500 $a Source: Dissertation Abstracts International, Volume: 61-07, Section: B, page: 3734.
500 $a Director: Hon-Yim Ko.
502 $a Thesis (Ph.D.)--University of Colorado at Boulder, 2000.
520 $a Slope stability problems are among the most commonly addressed problems in geotechnical engineering. Since Fellenius (1927) suggested the method of slices, several slice methods have been proposed attempting to permit a quantitative assessment of the stability of slopes. These conventional methods of slope stability analysis are mainly based on the concept of limiting equilibrium. The limiting equilibrium concepts have been expanded to accommodate three-dimensional features of slopes and several 3-D slope stability methods have been proposed in the literature, ranging from a rough approximation method (weight average method suggested by Sherard, 1963) to a rigorous method (generalized 3-D stability method using columns by Fredlund and Lain, 1992).
520 $a The main problem in using 3-D methods is that although these methods satisfy 3-D boundary conditions, they generally predict excessively high safety factors, which are far different from the real field situation. In this study, the reason behind a high unreasonable value of factor of safety from the 3-D calculations was explained in terms of strength anisotropy and intermediate stress parameter. It was also shown in this study that the safety factor using isotropic strength can be an unreasonable prediction when the effect of anisotropy on shear strength of soil becomes significant in 2-D or 3-D slopes.
520 $a The effect of strength anisotropy to slope stability was investigated by conducting numerical analyses using finite element method (CRISP, 1987). Anisotropic bounding surface model (Crouch & Wolf, 1992) and cubic element were incorporated into the program to simulate anisotropic behavior of soils and consider 3-D boundary condition of slopes. A verification study was made for the anisotropic model and cubic element by comparing numerical predictions with centrifuge model tests. Based on the numerical analyses, it was concluded that extension area on potential slip surface of slopes exists as long as deformation of slopes is allowed and the extension area is more significant in 3-D slope than in 2-D slope.
520 $a A centrifuge model test was conducted to verify the numerical results, in which 3-D failure of slope was imposed by local surcharge load. The geometry of 3-D slip surface was assumed based on the deformations observed in the model and 3-D factor of safety for the slip surfaces was evaluated from moment equilibrium condition. Based on the stability analysis, it was found that the 3-D factor of safety is realistically predicted only when the numerically determined extension area is adequately incorporated in the stability analysis.
590 $a School code: 0051.
650 4 $a Engineering, Civil. $3 783781
650 4 $a Geotechnology. $3 1018558
690 $a 0543
690 $a 0428
710 2 0 $a University of Colorado at Boulder. $3 1019435
773 0 $t Dissertation Abstracts International $g 61-07B.
790 1 0 $a Ko, Hon-Yim, $e advisor
790 $a 0051
791 $a Ph.D.
792 $a 2000
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9979353