Paper
Numerical Modeling to Investigate the Effect of Slippage on the Settlement Response of Reinforced Soft Soil
- Authors:
- AQEEL AL-ADILI
- Abstract
- In this paper, a numerical study using F.E. method is undertaken to predict the settlement response of a flexible footing, considering the plane strain conditions, resting on a reinforced granular bed on a soft soil. The granular fill, soft soil and geosynthetic reinforcements are considered as non-linear materials. The geosynthetic reinforcement is modeled with interface elements for allowing slip between the soil and reinforcement. When no interface elements were used, the geosynthetic reinforcement was modeled as if there was a slip. It appears that allowing slip has a negligible effect on the settlement predicted. The results obtained from the present investigation showed very close agreement when compared with the results of finite element analysis and lumped parameter modeling carried out by previous researchers, assuming no slip conditions. The number of reinforcement layers was taken as one and three. A parametric study has been carried out to illustrate the effect of slippage of the reinforcement layer on the settlement response as dry and phreatic surface (saturation) conditions. The increase in the settlement is not significant when the slippage of the reinforcement is considered.
- Keywords
- Geosynthetic Reinforcements; Granular Bed; PLAXIS; Slippage; Soft Soil; Parametric Modeling
- StartPage
- 180
- EndPage
- 188
- Doi