A study on the analysis of the stability of the rooted-soil slope

• Main Authors: Huang,Sheng-Xian, 黃生賢
• Other Authors: Yu,Hsin-Wan
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/31264970302480103323

碩士 === 中國科技大學 === 土木與防災設計研究所 === 99 === ABSTRACT As analyzing the slope stability, two important issues are to determine safe factors and to specify the corresponding critical slipping surface In order to solve these two problems, a conventional way is to use the limit equilibrium method. Although this approach is simple and easy it does not account for the effect of deformation and strength, and also needs abundant simplifying assumptions. In addition, the location of the critical slipping surface needs to be defined in advance. These make the application of the limit equilibrium method very limited and incompletel. As opposed to the limit equilibrium method, the finite-element method has less limitation. In general, as applying the finite-element method to investigate the slope stability numerically, the shear strenghte reduction technique is used to obtain the rational safe factor for the slope and then to determine the potential location of the slipping surface. Thus the current study uses the limit equilibrium method to analyze the slipping surface and then applies the finite-element method to examine the stress for the stability of the slopes with rooted-soil and without rooted-soil. Our results show that rooted-soils has obvious contributions to the slop with lower degrees. Keywords: slope stability, limit equilibrium method, finite element method, shear strength reduction technique.