Pseudo Static Seismic Stability Analysis of Reinforced Soil Structures
详细信息 查看全文
- 作者：B. Munwar Basha and P. K. Basudhar
- 关键词：Limit equilibrium method ; Log ; spiral failure mechanism ; Pseudo ; static method ; Factor of safety ; Reinforced earth walls ; Seismic stability
- 刊名：Geotechnical and Geological Engineering
- 出版年：2010
- 出版时间：November 2010
- 年：2010
- 卷：28
- 期：6
- 页码：745-762
- 全文大小：711.0 KB
文摘
The paper pertains to the pseudo-static seismic stability analysis of reinforced soil structures. Using limit equilibrium method and assuming the failure surface to be logarithmic spiral, analysis has been conducted to maintain internal stability against both tensile and pullout failure of the reinforcements. The external stability of the reinforced earth wall is also assessed in terms of its sliding, overturning, eccentricity and bearing modes of failure. The influence of the intensity of the surcharge load placed on the backfill is also considered in the analysis. The obtained results are validated by comparing the same with those reported in literature. Studies have also been made regarding the influence of backfill soil friction angle, horizontal and vertical seismic accelerations, surcharge load, the tensile strength of reinforcement, pullout length of the reinforcement and number of reinforcement layers on the seismic stability against various failure modes as mentioned earlier.