Uplift Response of Opening Anchor Bladed Pile in Sand

Piles in offshore constructions have often been reinforced with anchored piles, batter piles, and micro piles to strengthen their uplift load. The opening bladed anchor pile is a recent alternative approach that is presented in this study. This modified pile aims to provide a bearing area underneath the soil during uplift. This method is not incompatible with driving or penetrating piles into the ground. The pullout response of the modified anchor was examined in an experimental investigation. The impact of relative density of the sand, the embedment ratio, and the angle of the blade on the uplift capacity of the anchor pile with blades are studied. The ultimate uplift response of the bladed anchor implanted in sand improves with the increase in embedment ratio and blade angle. The percentage of amelioration in the uplift load at embedment ratio of 32 and blade angle of 90° was (231.1%, 208.6%, and 191.4%) at sand relative densities of (30%, 50%, and 80%), respectively, compared to unbladed anchor. The presence of blades produced a perfect anchoring system. For offshore applications, this piling modification is practical, appropriate for marine constructions, and simple to install.