فاطمه بحري

This research examines the bearing capacity of square and circular plate anchors utilizing the centrifuge facility at the Iran University of Science and Technology. The study aimed to eva‎luate the effects of anchor shape, soil density, and embedment depth ratio on bearing capacity. A square anchor with a side length of 15.94 mm (equivalent to 0.2394 m in real scale) and a circular anchor with a diameter of 18 mm (equivalent to 0.27 m in real scale) were employed, both having an identical surface area of 0.05 m². The centrifuge acceleration was consistently set at 15.02g across all tests. Experiments were conducted for square anchors at two relative soil densities of 46% and 20%, with embedment depth ratios (H/h) of 3, 4, 5, and 7. For circular anchors, tests were performed solely at a density of 46%, with embedment depth ratios (H/d) of 2.65, 3.54, 4.42, and 6.19. Results revealed that the net bearing capacity of both anchor types increases with higher embedment depth ratios. This increase was more significant at lower H/D ratios, with the rate of increase diminishing at greater depths. Soil with a higher density (46%) exhibited superior bearing capacity compared to the 20% density condition, attributable to its greater unit weight and friction angle. Comparisons between square and circular anchors produced inconsistent outcomes; some data favored the circular anchor, while others suggested the square anchor performed better. Additionally, experimental bearing capacity factors (Nq) were lower than theoretical predictions, underscoring the necessity to adjust these coefficients for deep conditions and centrifuge testing.

مهار صفحه‌اي افقي , مدل‌سازي سانتريفيوژ

Horizontal plate anchor , Centrifuge modeling

fateme bahri

Dr . Mehran Karimpour Fard & Dr . Habib Shah Nazari