https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:55216 Wed 01 May 2024 10:47:40 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53043 0), the pressure under the helix gradually decreases, while the pressure under the shaft increases and then decreases within a certain dh/Dh. The mobilized shear strength contribution of the helix decreased with the increase in helix position-to-helix diameter ratio (dh/Dh). Moreover, when dh/Dh ≥ 1.5, both central shaft and helix behaved independently, and their contribution in mobilized shear strength cannot be considered as a group. Regarding the effect of the helix position on the shaft pressure, when dh/Dh < 1.5, the ratio of screw pile to straight pile end-bearing capacity decreases almost linearly with the increase in dh/Dh. A modified equation is proposed that includes the two factors—helix position and shape (helix which differentiates screw pile shape from the straight pile)—to estimate the end-bearing capacity of the strong helix screw pile.]]> Fri 17 Nov 2023 12:01:35 AEDT ]]>