随着逐渐向深海开发石油资源的需要,许多海洋工程力学中的问题,迫切等待着人们去解决,其中一个新颖而又重要的问题就是海底管线的屈曲和屈曲传播。实践证明,在深水海域中铺设管线,由于在铺管船和海床之间管线有一段很长的悬跨段,比较容易发生这种破坏现象。屈曲传播是海底管线铺设中一个特有的力学问题,它指的是当管线承受过大的外压和 With the need to gradually develop oil resources in the deep sea, many problems in marine engineering mechanics urgently await people to solve. One of the novel and important issues is the buckling and buckling propagation of submarine pipelines. Practice has shown that laying pipelines in deep waters is relatively easy to occur due to a long span between pipelines and the seabed. The buckling propagation is a unique mechanical problem in the laying of submarine pipelines. It refers to when the pipeline is subjected to excessive external pressure and