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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2008, Vol. 27 ›› Issue (6): 1090-1094.

• • 上一篇    下一篇

碎石桩处理高液限土地基的离心试验研究

吴国雄, 左杨, 廖俊棠   

  1. 重庆交通大学 土木建筑学院, 重庆 400074
  • 收稿日期:2008-05-27 修回日期:2008-07-28 出版日期:2008-12-20 发布日期:2016-11-07
  • 作者简介:吴国雄(1966-),男,湖北崇阳人,教授,博士生导师,主要从事道路与铁道工程教学、研究工作。E-mail:wgx_ph.d@163.com。
  • 基金资助:
    重庆市交通委员会科技项目(2006038)

Research on Simulating Settlement of Disposing Foundation of High Liquid Limit with Gravel Pile by Centrifugal Test

WU Guo-xiong, ZUO Yang, LIAO Jun-tang   

  1. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2008-05-27 Revised:2008-07-28 Online:2008-12-20 Published:2016-11-07

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摘要： 高液限土是一种对工程有害的特殊土。为了处治高液限土地基,对室内土工离心模型试验进行分析,利用离心机产生离心力场,提高模型土体的体积力,形成人工重力。模拟高液限土地基在碎石桩处理后的固结性状,观测地基模型的变形和沉降。试验结果表明,碎石桩复合地基措施确实能改善地基的受力和变形性状,极大增强地基的稳定性。

关键词: 高液限土, 地基处治, 土工离心模型试验, 碎石桩

Abstract: High liquid limit soil is a special kind of soil which is harmful to the engineering.In order to dispose the foundation of the high liquid limit soil,a centrifugal model test has been chosen,which uses the centrifugal power brought by centrifugal machine to improve the bulk power of the model and to form the man made gravity.The consolidation state of high liquid limit soil after the gravel pile is simulated,and meanwhile the deformation and subsidence of foundation model is observed.Through analysis of centrifugal model test,it is showed that the measure of gravel pile compound foundation improves stress and deformation behavior of foundation,and enhances the stability of foundation greatly.

Key words: high liquid limit soil, foundation treatment, centrifugal model test, gravel pile

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