Numerical Analysis of the Effect of Various Reinforcement Conditions on Deformation Control of High Filled Embankment
Taken the Jiyuan-Xin'an Expressway project as an example,a finite element model of high filled em-bankment was established based on a half way embankment scale model test.By changing the type and length of re-inforcement materials,as well as the number of reinforcement layers,the vertical displacement at the top slope and the horizontal displacement of the slope surface of the high filled embankment were analyzed.The analysis results show that the horizontal displacement of high filled embankments is distributed in a"bulging"shape along the slope surface,the maximum value occurring at 2/3 of the slope height under various reinforcement conditions;The type of reinforcement material has a significant impact on the deformation of high filled embankments;The length of the re-inforcement material has a significant impact on the vertical displacement at the center line at the top of the high filled embankment;During the semi laying of the geogrid,that increasing the number of reinforcement layers will exacerbate the uneven settlement.The optimal solution to control the horizontal displacement of the slope surface is to fully lay the 7-layer geogrid.This achievement provides a reference for the design of reinforcement treatment schemes for similar high filled loess embankments.
high filled embankmentreinforcementdeformation controlnumerical analysis
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