土工基础

›› 2017, Vol. 31 ›› Issue (1): 54-58.

• 工程实录 • 上一篇    下一篇

CFG桩复合地基工作机理研究分析

郭 聪，朱寿增   

  1. （广西岩土力学与工程重点实验室 桂林理工大学土木与建筑工程学院，广西桂林 541000）
  • 收稿日期:2016-03-14 修回日期:2016-03-18 出版日期:2017-02-20 发布日期:2017-02-24
  • 作者简介:郭〓聪(1989-)，男，硕士，研究方向为基础设计、地基处理等。
  • 基金资助:

    基金项目：广西岩土力学与工程重点实验室基金项目（15A0101）

Study of Cement-Fly ash-Gravel Composite Ground

GUO Cong, ZHU Shouzeng   

  1. (Guangxi Geotechnical Engineering Key Laboratory, College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541000)
  • Received:2016-03-14 Revised:2016-03-18 Online:2017-02-20 Published:2017-02-24

摘要： CFG桩复合地基施工设备简单，施工技术简便，成本不高，而且能有效的改善天然地基的性能，在我国得到大力推广。利用ANSYS有限元分析软件，通过有限元理论和技术，初步研究和分析了CFG桩复合地基的工作机理，在模拟过程中，考虑了较多的参数和变量，使其能够准确反映CFG桩复合地基的工作性状，并且通过对数据的统计分析，得到了这些参数之间的联系和相互之间的影响规律。

关键词: CFG桩, 复合地基, ANSYS有限元, 桩土应力比

Abstract: Cement Fly ash Gravel (CFG) column composite foundation is one of the composite ground formed by the soil improvement methods. It receives wider applications since it has the advantages of simple construction equipment; easy installation; low overall cost and effectively improving natural weak ground. The researches on the mechanism on the CFG composite ground are fruitful in recently and many positive results are obtained. This paper presents the numerical analysis results of the performance of the CFG composite ground using ANSYS commercial software. Factors that might impact the performance of the CFG composite ground have been considered in the analysis.

Key words: CFG Columns, Composite Ground, Finite Element Software ANASYS, Stress Ratio between Column and Soil