The results from the consolidated undrained triaxial compression tests and the consolidated drained triaxial compression tests on the refuses with various compositions

have shown that the constitutive relation of the tested refuse basically fits the Duncan-Chang nonlinear elastic model. The organic and soil contents of refuses are the important factors that affect the strength parameters of refuses. For the refuse with higher organic and lower soil contents

the lower value of cohesion c and higher value of internal friction angleφshould be adopted .The values of c

φ and their variation are given. The values of c will increase and the values ofφ will decrease with the variation of time. Although the value of axial strain of refuse exceeds 30 %

the phenomenon of the increase of the principal stress difference is observed. The hysteresis pore water pressures in refuse during the consolidation are analyzed. The variation of the seepage coefficients k is related to the stress

time and the composition of the refuse. The pore water pressures of the refuses will increase with the increase of axial stress during the shear of the consolidation drained triaxial compression tests. The total stress strength parameters are not the effective stress strength parameters.