摘要
根据直剪试验结果，利用两种不同的非线性模型分析土工格栅与土体之间界面摩擦性能，阐明了基于Duncan-Chang关系模型的局限性。讨论了正应力和压实度对界面抗剪强度、残余抗剪强度、剪切劲度模量、破坏比等力学参数的影响。对两种不同土的直剪试验结果进行了比较．说明了增加土体中粗颗粒含量能改善界面抗剪强度指标。
Based on the results of direct shear tests, the frictional characters of the interface betweengeogrids and soil are analyzed by using two kinds of nonlinear models, and the limit of the modeldeveloped from Duncan － Chang model is expounded. The innuences Of the normal stress andcompaction factor on the mechanical parameters such as inter facial shear strength, remainingshear strength, stiffness modulus in shearing and destructive ratiO etC. are discussed. Bycomparing the results of direct shear tests on twO kinds of soUs, it is shown that increasing thecontent Of coarse aggregates may improve the interfacial shear strength.
出处
《长沙交通学院学报》
1998年第3期34-39,共6页
Journal of Changsha Communications University
基金
国家自然科学基金
