中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2014, Vol. 33 ›› Issue (5): 98-101.DOI: 10.3969/j.issn.1674-0696.2014.05.22

• • 上一篇    下一篇

土体剪胀性对地基承载力的影响

胡世敬1,姚圣磊2,余苗2   

  1. 1.贵州交通职业技术学院,贵州 贵阳 550008;2. 重庆交通大学 交通土建工程材料国家地方联合工程实验室,重庆 400074
  • 收稿日期:2014-04-26 修回日期:2014-08-06 出版日期:2014-10-15 发布日期:2015-03-10
  • 作者简介:胡世敬(1979—),女,贵州瓮安人,高级工程师,主要从事土建工程的教学工作。E-mail:lindalux@qq.com。
  • 基金资助:
    重庆交通大学交通土建工程材料国家地方联合工程实验室开放基金资助项目(LHSYS-2012-006)

Effect of Shear Dilatancy Angle on Bearing Capacity of Foundation

Hu Shijing1,Yao Shenglei2,Yu Miao2   

  1. 1. Guizhou Polytechnic College of Communications, Guiyang 550008, Guizhou, China; 2. National & Regional Engineering Lab for Transportation Construction Materials, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2014-04-26 Revised:2014-08-06 Online:2014-10-15 Published:2015-03-10

摘要: 基于经典弹塑性理论,采用非相关联的流动法则,分析并推导了Mohr-Coulomb模型强度准则对应的土体剪胀性方程;采用有限元软件ABAQUS分析了地基土处于不同剪胀角时承载力的变化情况。结果表明:地基承载力随着剪胀角的增大而增大,通过数值模拟得到考虑剪胀时剪胀角的取值范围为(3/4~5/6)φ(φ为土体内摩擦角),对工程实践具有一定的参考意义。

关键词: 岩土工程, 剪胀性, 地基承载力, 有限元

Abstract: Based on the classical elastoplastic theory, the dilatancy equations of Mohr-Coulomb model was analyzed and reasoned by the non-associated flow rule. By using ABAQUS-nonlinear FEM software, the bearing capacity of foundation in condition of different dilatancy angles was imitated and computed. The results show that the bearing capacity of foundation increases with the increase of dilatancy angle. The range of the dilatancy angle (3/4~5/6)φ is given by using ABAQUS simulation, which can be useful for practical engineering.

Key words: geotechnical engineering, dilatancy, bearing capacity of foundation, FEM

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