Based on a series of dynamic triaxial tests in which the frequency is equals to 0.02 Hz
0.1 Hz
1.0 Hz
the effect of cyclic loading frequency on the lightweight clay mixed with EPS beads soil (LCES) is investigated. The results of dynamic triaxial tests show that the cyclic loading frequency has obvious effect on the LCES
with the decreasing cyclic loading frequency
axial strain and damping ratio increase
dynamic strength and dynamic modulus decrease when cyclic loading frequency equals to 0.02-1.0 Hz. Compared with high cyclic loading frequency
the pore water pressure at low cyclic loading frequency develops more quickly
and the effective confining pressure of LCES decreases quickly at the same time
which leads to the destruction of LCES
so the dynamic strain increases and the dynamic strength decreases accordingly.