中文摘要：

霍尔锚是大中型船舶常用的主锚。设计了4个比尺的模型锚,砂土中进行了拖锚试验,研究了锚的姿态、运动轨迹和锚抓力的变化规律,确定了锚在砂土中的抓力系数。基于土体的极限平衡理论,建立了拖动过程中锚抓力的计算方法,计算结果与试验较为吻合。对锚在拖动过程中的抓力系数与砂土强度参数之间的关系,给出了拟合公式,可供设计参考。

英文摘要：

Hall anchor is often used as the main anchor on great or medium ships. A series of model tests of anchors in dragging process in the sand has been performed. Kinematic behavior, trajectory and holding capacity of the anchor in dragging process have been revealed. Holding force coefficient of Hall anchor in sand has been determined. Based on the limit equilibrium theory of soil, a calculation method of holding force has been proposed. The computational results are compared with the test results and good agreement is demonstrated. Relations between holding force coefficient and strength parameters of the sand are given and corresponding fitting formulas are put forward. The results can provide a good reference for the designers.