高桩码头-岸坡相互作用有限元数值模拟

离岸深水全直桩码头竖向承载特性有限元数值模拟贺林林;邬志红;邓晓【摘要】The vertical bearing characteristic and instability mode of all-vertical-piled wharf in offshore deepwater is studied with a structure-foundation 3D elastic-plastic finite element model.The results show that the vertical bearing characteristic and instability mode of all-vertical-piled wharf in offshore deep-water is closely related with the strength of the foundation soil.The vertical ultimate bearing capacity of this structure is decided by the strength of the foundation soil when there is soft soil foundation,while the vertical ultimate bearing capacity of the structure is conducted by the strength of the foundation soil and the pile when there is hard soil foundation.Therefore,the influence of the adverse factors to the vertical bearing characteristic and instability mode of the structure in the design should be taken into full account,such as the softening effect of soft soil which could reduce the strength of the foundation soil.%建立结构-地基相互作用三维弹塑性有限元模型,分析软土地基上离岸深水全直桩码头竖向承载特性与失稳模式.通过研究得出,竖向荷载作用下,该结构竖向承载特性及失稳模式与土体强度密切相关.当地基较软时,结构竖向极限承载力由地基土体强度决定;当地基较硬时,结构竖向极限承载力由桩身及土体强度共同控制.为此,在进行该类结构设计时,应充分考虑软土地基软化效应等可能降低土体强度的不利因素对结构竖向承载特性及失稳模式的影响.【期刊名称】《水运工程》【年(卷),期】2017(000)007【总页数】6页(P92-96,102)【关键词】全直桩码头;竖向荷载;有限元法;承载特性;失稳模式【作者】贺林林;邬志红;邓晓【作者单位】重庆交通大学,内河航道整治技术交通行业重点实验室,国家内河航道整治工程技术研究中心,重庆400074;重庆交通职业学院,重庆402247;重庆水利电力职业技术学院,重庆402160【正文语种】中文【中图分类】U656.1+1;TV31在“一带一路”的战略背景下，港口发展建设的需求迫切，尤其是离岸深水港建设。

http ：//rmzj．pearlwater．gov．cndoi ：10.3969/j.issn.1001-9235.2016.06.015第37卷第6期人民珠江2016年6月PEAＲL ＲIVEＲ高翔，韩时琳，曹周红，等．高桩框架码头损伤后上部结构承载力数值模拟［J ］．人民珠江，2016，37（6）：57－61．高桩框架码头损伤后上部结构承载力数值模拟高翔，韩时琳，曹周红，叶挺（长沙理工大学水利工程学院，湖南长沙410004）摘要：采用大型有限元计算软件ANSYS 对高桩框架码头进行数值模拟。

通过现场勘查依托工程码头损伤情况，分别建立码头损伤前后的有限元模型，计算分析各级工况荷载下损伤前后码头构件的受力性能，计算结果表明面板底部裂缝及混凝土剥落对码头上部结构承载力影响不大。

关键词：高桩框架码头；损伤；承载力；数值模拟中图分类号：TV143文献标识码：A文章编号：1001-9235（2016）06-0057-05Numerical Simulation for Bearing Capacity of UpperStructure of Damaged Framed High －Piled WharfGAO Xiang，HAN Shilin，CAO Zhouhong，YE Ting(School of Hydraulic Engineering，Changsha University of Science ＆Technology，Changsha 410004，China)Abstract:In this paper，the mechanical properties of the framework of the high pile wharf are analyzed by large －scale finite element a-nalysis software，ANSYS．Two calculation models of the wharf which can describe its shape before and after damage were established based on the detailed engineering survey．The stress performance of the wharf components before and after damage was analyzed at dif-ferent load case levels．The result shows that crack and concrete －flake －off at the bottom of faceplate has just a little influence on the bearing capacity of the upper structure．Keywords:the framework of the high pile wharf;damage;bearing capacity;numerical simulation基金项目：交通部主干学科应用基础研究项目（2014329825030）收稿日期：2016-01-18作者简介：高翔，男，湖北石首人，主要从事港口及水运工作。