Dynamic characteristics and microscopic pores structure of remolded soft clay under influence of nano-CaCO3

Dynamic characteristics and microscopic pores structure of remolded soft clay under influence of nano-CaCO3

Blog Article

To study the dynamic characteristics and microstructure of nano-CaCO3 remolded soft clay under cyclic loading, GDS dynamic triaxial and NMR tests were conducted to analyze its dynamic stress-strain, dynamic elastic modulus, damping ratio, and micro pore changes.The results show that as the content of nano-CaCO3 increases and Velcro rollers the confining pressure increases, the dynamic strain of the remolded soft clay gradually decreases and the dynamic elastic modulus gradually increases; The increase in consolidation stress ratio leads to a decrease and then an increase in dynamic strain of nano-CaCO3 remolded soft clay, and an increase and then a decrease in dynamic elastic modulus; The increase in confining pressure and consolidation stress ratio can effectively reduce the damping ratio of the soft clay; There is a significant nonlinear relationship between the hysteresis energy dissipation of soft clay and the dynamic strain curve; The main peak and peak area of the T2 distribution curve of nano-CaCO3 soft clay are significantly reduced compared to plain soft clay, and the decrease in pore ratio makes the soil structure more stable.The obtained dynamic T-Shirts characteristics of remolded soft clay based on nano-CaCO3 provides some reference for practical engineering.