针对随机波浪作用下海底管线的动力响应是设计中需考虑的重要因素,考虑波浪随机特性、管-土接触和惯性效应,建立了二维有限元管-土相互作用的数值计算模型,开展了摩擦系数、埋深、管径、海床渗透系数对管周孔隙水压力、管线竖向位移及其内部正应力影响的数值模拟研究。研究成果可为海底管线设计提供技术参考。
It is a key issue to define the dynamic response of buried submarine pipeline subjected to random wave loading in the design of submarine pipelines .Taking the stochastic behavior of waves ,contact and inertia effects into consideration ,a 2-D finite element analysis model was established considering pipeline-soil interaction ,based on which ,the influence factors including frictional coefficient ,buried depth ,pipe radius and permeability of seabed were analyzed to study the impacts on pore pressure ,vertical displacement and normal stress of the pipes respectively .The derived conclusion provides a technical support for the design of submarine pipelines .