Uplift resistance capacity of anchor piles used in marine aquaculture.
Uplift resistance capacity of anchor piles used in marine aquaculture.
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DOI：
10.1038/s41598-021-99817-5
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发表时间：
2021-10-13
影响因子：
4.6
通讯作者：
You Y
中科院分区：
文献类型：
--
作者：
Gui F;Kong J;Feng D;Qu X;Zhu F;You Y
锚杆桩在海水养殖中得到了广泛的应用，其安全性在很大程度上取决于抗拔能力，特别是在恶劣的海洋环境中。然而，对于海洋养殖设备主体系泊锚桩的设计和安装却鲜有实用指南。通过室内试验，研究了斜向荷载作用下，初始张拉角、桩径、埋深和桩型对锚杆抗拔承载力的影响。利用CCD摄像机和测力传感器分别测量相应的位移和载荷。结果表明，增大圆形和方形单桩的初始张拉角可以显著提高桩的抗拔承载力。方形单桩的破坏荷载略高于圆形单桩。增大桩径可以有效提高破坏荷载，延缓桩顶位移的发展速度。增大埋入深度可有效改善破坏荷载，增大桩顶水平位移。双锚桩的抗拔能力优于单锚桩。布置形式对破坏荷载影响不大，但对位移发展影响较大。
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.
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