FEM Comparative Analysis on the Facing Rigidity in Geotextile Reiforced Soil walls
1995 Volume 10 Pages 73-82
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1995 Volume 10 Pages 73-82
It has already been shown that the stability of the geotextile reiforced earth walls was improved with the use of rigid facings that brought about the reduction of overall deformation and the amount of tensile force generated in geotextile. To evaluate the effects of facing rigidity, stress-deformation behavior must be analyzed based on the interaction of facings, geotextiles, and soils.
A numerical analysis using a two-dimensional elasto-plastic FEM taken account of the construction process was conducted to clarify various aspects of the behavior of a reinforced earth walls measuring 10.0m high. Three types of facings were analyzed: the wrapped-around wall face method, the concrete panel face method, the concrete block face method. In addition, the slope of wall was varied from 1:0.0 to 1:0.8 (pitch of 0.2). The results showed that facings performed using the block and panel face method, which provided higher rigidity than the wrapped-around wall face method, could be increased the stability of the reinforced earth walls under the characteristic bound coditions be satisfied:
