Uplift resistance capacity of anchor piles used in marine aquaculture

Abstract

Anchor piles are widely used in marine aquaculture, and the safety is largely determined by the uplift resistance capacity,especially in harsh ocean environments. However, there are few practical guides to the design and installation of the anchor piles for mooring the body of marine aquaculture equipment. Laboratory experiments were conducted to investigate the effect of the initial tension angle, pile diameter, embedded depth, and pile configuration on the uplift resistance capacity of anchor piles under oblique loads. CCD camera and load cell were utilized to measure the corresponding displacement and load, respectively. The results show that increasing the initial tension angle of circular and square single piles can significantly improve the uplift resistance capacity. The failure load of the square single pile was slightly higher than that of the circular single pile. Increasing the pile diameter can effectively improve the failure load and delay the development speed of the pile top displacement. Increasing the embedded depth can effectively improve the failure load and increase the lateral displacement of the pile top. The uplift resistance capacity of the dual anchor piles was better than that of the single anchor piles. The layout configuration has little effect on the failure load, but has a large effect on the displacement development.

Structural parameter variation working on the performance of anti-uplift multibell underreamed anchors

“…To simulate clay 23 or fine-grained soils 24 , transparent soils use a mixture of mineral oil and amorphous silica to conduct stepwise consolidation 25 . The preparation scheme of transparent soil samples in this test is consistent with Dr. Hover’s 25 , and various related parameters of transparent soil have been studied extensively by many scholars 25 – 27 .…”