The dynamic elasticity modulus and critical dynamic stress of improved soil under different confining pressures and frequencies are investigated by using GDS dynamic triaxial test system to examine the dynamic characteristics of cinder-improved soil as subgrade under medium and low confining pressure. The attenuation model of the dynamic elastic modulus was established to analyze the influence of different confining pressures and loading frequencies on the dynamic modulus. A fuzzy linear regression model based on structural element method was used according to the uncertainty of critical dynamic stress. Results show that the dynamic elastic modulus of soil decreases exponentially with the increase of loading times. The attenuation model can reflect the influence of frequency and confining pressure on the dynamic modulus of elasticity. The critical dynamic stress of soil is negatively correlated with the frequency of loading and is positively correlated with the confining pressure. The fuzzy linear regression model based on the structural element method can reflect the relationship between the critical dynamic stress and the frequency and confining pressure.
Experimental Study on Dynamic Elastic Modulus and Critical Dynamic Stress of Cinder-Improved Soil Subgrade
2018-12-01
82019-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Dynamic Stiffness Modulus for Pavement Subgrade Evaluation
British Library Online Contents | 2003
|Dynamic Stiffness Modulus for Pavement Subgrade Evaluation
Online Contents | 2003
|Automated Dynamic Cone Penetrometer for Subgrade Resilient Modulus Characterization
Transportation Research Record | 2002
|Estimation of Subgrade Resilient Modulus for Virginia Soil
Online Contents | 2009
|Estimation of Subgrade Resilient Modulus for Virginia Soil
Transportation Research Record | 2009
|