Numerical Analysis on Deformation Behavior of Geosynthetic-Reinforced Slopes

Fei Song

Abstract


Geosynthetic-reinforced slopes are widely used in engineering practices because of its unique advantages. In this paper, the deformation behavior of geosynthetic-reinforced slopes is numerically investigated by employing geotechnical software Plaxis. The effects of the location, the lengths and the normal stiffness of the reinforcement layer are studied based on the analysis of the results. Study results indicate that the small spacing of reinforcement layer within the range from one sixth to one half of the slope height can significantly reduce the horizontal displacement of the slope. After the length of the reinforcement layer increases up to the height of the slope, its contribution to the reduction of the horizontal displacement becomes less significant. The reinforcement effect becomes less after the normal stiffness of the geosynthetic material becomes greater than 18×103kN/m.


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References


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