Abstract：Based on initial data of axial-symmetrically triaxial compression test of silty and sandy clays with temperatures of －4 ℃ and －6 ℃，respectively，two methods are adopted with/without considering the cross-section area change of specimens. The relationships among the cross-section area change of specimens，axial strain and confining pressure are discussed. According to the results，it is found that the specimens increase nonlinearly with the axial strain increase. However，it is also seen that the cross-section area increases when the confining pressure increases to about 3.0 MPa below which the area change basically keeps constant；and it was not varied with the soil type and temperature. Moreover，the patterns of stress-strain curves and compressive strength values，when the revised area is considered，are obviously different from the corresponding ones without considering the revised area.
