A Numerical Analysis of Earth Embankment Reinforced by Polymer Grids

概要

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A series of testings on earth embankments had been conducted with a view to formulate a rational design as well as a proper construction technique of polymer grid reinforced embankment. In practice experimental embankments (height 3m, slope 1:0.7) were constructed laying in the earth-fill polymer grids at various lengths and at various spacings in the vertical direction. Tests were also done for both cases of embankment with and without slope protection measures. A comparative studies of grid reinforcing effect was carried out by conducting tests on embankments under heavy rain (reinfall intensity 15mm/hr) and reinforcing effects of grids as a result of integration of earth and grid was under special scrutiny. In this report a summary of test results were described. The FEM analysis based on elasto-plastic models was performed using these results. It was confirmed that models simulate the actual conditions of practical construction.
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