This paper presents data from an initial development stage of an ‘umbrella anchor’ concept. The anchor can be pushed into a sand deposit in a folded arrangement to reduce installation loads. When a pull-out load is applied to the mooring line, the anchor deploys to create a large embedded plate anchor. Physical modelling was carried out in a saturated sand bed with the anchor installed at depths of up to 1.6 m and loaded vertically. During installation, liquefaction was generated at the tip of the anchor to reduce the penetration resistance. This enabled the anchor to be installed quickly and accurately to a target depth. The anchor could provide pull-out resistances comparable to an anchor that has been wished-in-place at similar depths. The observed behaviour provided encouraging preliminary results and suggests that, with further development and analysis, the concept could potentially be used for commercial applications.

中文翻译：

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一种用于风能设备支撑平台的锚固系统

本文介绍了“伞锚”概念的初始发展阶段的数据。锚可以折叠布置推入沙堆中，以减少安装负载。当拉出负载施加到系泊线上时，锚展开以形成大型嵌入式板锚。物理模型在饱和沙床中进行，锚安装深度达 1.6 m，并垂直加载。安装时，锚杆尖端产生液化，降低贯入阻力。这使得锚能够快速准确地安装到目标深度。该锚可提供与希望在类似深度就位的锚相当的拉拔阻力。观察到的行为提供了令人鼓舞的初步结果，并表明，