土工基础

›› 2011, Vol. 25 ›› Issue (4): 49-51.

• 工程实录 • 上一篇    下一篇

扭剪荷载下横观各向异性软粘土内桶形基础承载性能分析

武 科1,2, 马明月3, 陈 榕4   

  1. (1.深部岩土力学与地下工程国家重点实验室(中国矿业大学),江苏徐州 221008; 2.山东大学岩土与结构工程研究中心,济南 250061; 
    3.山东科技大学,山东青岛 266510; 4.大连理工大学土木水利学院岩土工程研究所,辽宁大连 116024)
  • 收稿日期:2010-09-26 出版日期:2011-08-20 发布日期:2011-11-23
  • 作者简介:武科,男,1978年生,博士,主要从事岩土工程基本理论与数值分析、土力学计算等方面的研究。
  • 基金资助:

    中国矿业大学深部岩土力学与地下工程国家重点实验室开放基金项目(SKLGDUEK0910);河海大学岩土力学与堤坝工程教育部实验室开放基金项目(GH200803);中国博士后科学基金项目(20090451329)


Bearing Capacity Analysis of Bucket Foundation on Clay with Transversely Anisotropy under Condition of Torsion Shear Loading

WU Ke1,2, MA  Ming  yue3, CHEN  Rong4   

  1. (1. State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou Jiangsu 221008; 
    2. Geotechnical and Structural Engineering Research Institute, Shandong University, Jinan 250061;
    3. Shandong University of Science and Technology, Qingdao Shandong 266510; 
    4. Institute of Geotechncial Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian Liaoning 116024, China)
  • Received:2010-09-26 Online:2011-08-20 Published:2011-11-23

摘要： 作为海洋平台的基础部分，吸力式桶形基础除了承受海洋平台结构及自身重量等竖向荷载的长期作用，还要承担风、波浪等扭剪荷载作用，但目前对于吸力式桶形基础的扭剪承载力尚缺乏合理的计算模式和分析方法。针对软黏土横观各向异性，采用有限元数值分析方法，研究了扭剪荷载作用下桶形基础承载性能，据此进行了一系列变动参数比较计算，并对大量的计算结果进行了系统的分析，所得到的数值计算结果与分析结论为工程设计提供了参考依据。

关键词: 软黏土地基, 桶形基础, 有限元分析, 横观各向异性

Abstract: As the part of offshore platform, the suctional bucket foundation bears not only the vertical loading induced by the weight of offshore platform structure and itself but also torsion shear loadsing induced by wave and wind. However, there is no a commonly\|acceptable calculation mode and analytical method for the torsional shear of suctional bucket foundation. According to the transversely anisotropy of soft clay, the bearing performance of bucket foundation is studied under the condition of tortional shear loading by FEM, in which a series of changing parameters are compared calculation, then the amount of calculated results is analyzed systematically, their numerical calculation results and analysis are provided as the reference for engineering design.