Under this circumstance, they are easily occur large displacement and stress, or sympathetic vibration with the eddy. Therefore, researching and controlling the maximum allowable span length, it is the precondition of the adopting corresponding safeguard.

• 悬跨段的海底管道,因为没有土壤的支持力和摩擦力,很容易由于过大的位移和应力以及与尾流涡旋发生共振而破损,因此,研究并控制管道的最大悬跨长度,是采取相应的防护措施的前提。