Impact of Reinforcement Size on Supporting Soil Bulge During Anchor Uplift
摘要
Laboratory pullout model tests were performed using a circular anchor at shallow conditions of dense conditional reinforced sand beds using synthetic polypropylene geotextile layers. To determine the influence of the width of reinforcement on the improvement of anchor pullout capacity, the reinforcement layer was placed right above the anchor and the reinforcement layer width was varied from 3.65 times to 4.35 times the size of anchor. The test results proved that the anchor uplift increased with the width of reinforcement proportionally. However, the improvement with the increasing width of reinforcement is only 3.73%. Surprisingly, the reinforced soil bulging dimensions for the smaller and larger reinforcement widths are 36.84 and 59.84% higher as compared with unreinforced conditions, respectively. The percentage difference of soil bulge is almost 25% higher with increasing the reinforcement width by 19%. It clearly states that the distribution of anchor uplift loads to a larger area with reinforcement size enhancement caused the more amount of soil bulge. However, this study brought a view that the anchor uplift capacity improvement is not as much as soil bulge with the size of reinforcement.