Abstract
This technical note presents results of model tests performed on bamboo geogrid reinforced fly ash walls under applied strip load. The effect of vertical spacing and length of bamboo geogrid mattresses and strips on the deformation behavior of the model walls was studied and discussed. The results demonstrated the effect of increase in length and coverage ratios and decrease in vertical spacing of reinforcements on the improved performance of the model walls, including increased failure surcharge pressure, reduced facing displacement and backfill settlement. The failure surcharge pressure compared with the unreinforced model wall was improved by 185.76 and 311.84% for bamboo geogrid strips and mattresses respectively when vertical spacing and length of reinforcement used were 20 and 65% of the wall height respectively.
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