SHIPENGINEERING船舶工程Vol.45No.12023总第45卷,2023年第1期—39—桩靴贯入对邻近三桶导管架基础的附加变形影响刘博(中国能源建设集团广东省电力设计研究院有限公司,广州510663)摘要:为避免桩靴贯入过程中邻近三桶导管架基础发生倾覆破坏,利用耦合的欧拉-拉格朗日(CEL)方法,将桩靴在真实风电场地质条件下安装过程中周围土体的流动划分为浅层贯入、邻近桶中部-桶底深度及完全穿越桶底等3个阶段,明确在各阶段“桩靴-周围土体-邻近桶”的传力机制,模拟三桶导管架基础系统的水平、竖向和转角位移响应,结果表明,随着净间距的增加以及场地分层土强度分布的增加,三桶导管架基础将产生更大的附加倾覆量。关键词:桩靴贯入;三桶导管架基础;流动机理;传力机制;附加倾覆量中图分类号:TU476文献标志码:A【DOI】10.13788/j.cnki.cbgc.2023.01.06EffectofSpudcanPenetrationonAdditionalDeformationofTripodBucketsJacketFoundationLIUBo(ChinaEnergyEngineeringGroupGuangDongElectricPowerDesignInstituteCo.,Ltd.,Guangzhou510663,China)Abstract:Inordertoavoidtheoverturningfailureofthetripodbucketsjacketfoundationintheprocessofspudcanpenetration,acoupledEuler-Lagrange(CEL)methodisusedtopartitiontheflowofsoilaroundthespudcaninstallationunderthegeologicalconditionsofrealwindfarminto3stages:shallowpenetration,themiddletothebottomoftheadjacentbucketfoundationandcompletelypassingthroughthebucketbottom.Ineachstage,the"spudcan-surroundingsoil-adjacentbucket"forcetransmissionmechanismisqualitativelyanalyzed,andthehorizontal,verticalandrotationaldisplacementforthetripodjacketbucketfoundationsystemaresimulated.Theresultsshowthatwiththeincreaseofthenetspacingandthestrengthdistributionofthelayeredsoil,theadditionaloverturningdisplacementofthethreebucketjacketfoundationwillbegreater.Keywords:spudcanpenetration;tripodjacketbucketsfoundation;flowmechanism;forcetransmissionmechanism;additionaloverturningdisplacement0引言随着海上风电平价化时代即将到来,我国海上风电行业已经进入了冲刺阶段。截至2020年底,我国海上风电累计装机总量达到9.1GW[1],成为了全球第二大海上风电市场。与此同时,受到环境、噪声等因素的限制,近海风能资源逐渐枯竭,海上风电行业逐渐走向...