The phenomenon of strain softening usually occurs in saturated soft clay under cyclic loading. A temperature-controlled cyclic triaxial test on Ningbo saturated soft clay was carried out uner different temperature loadings,frequencies,initial deviator stresses,dynamic stresses and moisture contents,and a mathematical model which can reflect the strain softening reasonably was set up on the basis of the test.It is observed that the softening index reduces with the increase of vibration number,initial deviator stress,dynamic stress and moisture content.On the other hand,higher frequency and temperature will increase the softening index.The presented model can reasonably describe the effects of temperature,frequency,initial deviator stress,dynamic stress and moisture content on the soil strain softening.
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