Impact Analysis of Filler to Bearing Capacity of Reinforced Gravel Structure Layer with Geocell
Abstract
The type of gravel is one of the main factors which influence the bearing capacity of the reinforced gravel structure layer with geocell. Two kinds of geocell land three types of gravel were used for bearing-plate test. The vertical deformation, resilient modulus, plastic deformation and geocell-wall transverse deformation was analyzed. Analysis of variance (ANOVA) was applied on vertical deformation and modulus. The results showed that the structure with the smaller size gravel had larger vertical deformation and lower resilient modulus, and reinforcement was more significant. The vertical deformation of 10-20mm was similar to 20-30mm gravel structure layer. The geocell-wall transverse deformation in 1# center measure plot decreased with the increasing of gravel size, but the deformation in 4# side measuring plot approached to zero. It revealed that the loading transmission was limited to the adjacent cell. The results of ANOVA showed that three types gravel had significant influence on the resilient modulus of structure layers. While, 10-20 mm and 20-30 mm gravel had no significance on the deformation and modulus of the layers. It was demonstrated that 0-5mm gravel was not appropriate to the filler of the reinforced gravel structure layer with geocell.
Keywords
Road engineering, Geocell, gravel, Bearing- plate test, Deformation, Modulus, Analysis of variance
DOI
10.12783/dtmse/icmsea/mce2017/10862
10.12783/dtmse/icmsea/mce2017/10862
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