Study on Load Bearing Characteristics of Subgrade Filled in Highway Engineering
In order to improve the load bearing characteristics of the embankment filled in highway engineering,this paper analyzes the influ-ence of the reinforcement of geocell on the mechanical characteristics of the embankment filled in retaining wall by using the indoor scale mod-el.The results show that,compared with unreinforced subgrade,the load force of reinforced subgrade with 4.5 times height,3 times height and 2 times height spacing increases by 32.3%,59.7%and 98.1%,respectively.The maximum bending moment of the reinforced roadbed with 4.5 times,3 times and 2 times height spacing decreases by 8.5%,16.8%and 29.7%,respectively.With the increase of reinforcement density of geocell,the tensile stress of geocell increases and the bending moment decreases,which effectively improves the bearing characteris-tics and shear strength of the filled roadbed.
Highway engineeringFill the subgradeRetaining wallGeocell reinforcementLoad-carrying performance
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