DU Changbo,YI Fu.An Interface Pull⁃out Behavior Analysis of Geosynthetics Reinforced Soil[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(01):85-90.
DU Changbo,YI Fu.An Interface Pull⁃out Behavior Analysis of Geosynthetics Reinforced Soil[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(01):85-90. DOI: 10.13409/j.cnki.jdpme.2021.01.010.
An Interface Pull⁃out Behavior Analysis of Geosynthetics Reinforced Soil
To study the pull-out behavior of the reinforcement-soil interface at different locations in the test process and to compensate for the shortcoming of test measurements, an interface pull-out formula is proposed to predict the tension and displacement at any position of the reinforcement. The detailed application and analysis steps of the interface pull-out formula were given. First, the maximum peak tension of the reinforcement with a given length is predicted, and then the effective length of the reinforcement with a given peak tensile force is predicted within the maximum peak tensile force range. After that, the interface friction coefficient is determined, and finally the displacement at any position of the reinforcement is predicted. Meanwhile, a parametric study on the interface pull-out formula is conducted, and the predicted results of interface pull-out formula are compared with experimental results. The results show that the interface friction coefficient can indirectly verify the accuracy of the interface pull-out formula and provide a consistent explanation for the test results. The predicted results of the interface pull-out formula are in good agreement with test results, which indicates the rationality of the analytical model. The research results are of great significance to the analysis of the interface characteristics between a reinforcement and soil.
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