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。
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 dilataney angles was imitated and computed. The results show that the bearing capacity of foundation increases with the increase of dilataney angle. The range of the dilataney angle （3/4 -5/6 ）φ is given by using ABAQUS simulation, which can be useful for practical engineering.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2014年第5期98-101,共4页
Journal of Chongqing Jiaotong University(Natural Science)
基金
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)
关键词
岩土工程
剪胀性
地基承载力
有限元
geotechnical engineering
dilatancy
bearing capacity of foundation
FEM
