船锚触底贯穿量计算方法

Penetrating Depth of Anchor into Seabed

针对船锚触底后的贯穿量,引入侵彻公式(Young公式)作为计算模型。在此基础上,明确该模型中各种底质的S系数及霍尔锚触底横截面积的取值,给出锚触底时速度的计算方法,并结合现有投锚试验的成果确定无杆锚的形状系数。结果表明:所采纳的计算模型有较好的便捷性和符合性,对研究船锚触底贯穿量的各种影响因素和确定海底管线埋深具有一定的参考意义。

The Young＇ s formula is introduced into the calculation of the anchor penetration depth into seabed. The values of S-number and the cross sectional area at different seabed conditions for hall＇ s anchors are defined and the calculation method for the approaching speed of the anchor into sea bottom is proposed. The performance coefficient of the stockless an- chor involved in the formula is determined based on the available drop test results. The calculation model may be useful when studying the various factors about anchor penetration and the depth of submerged pipeline.