Creep behavior of clayey soil and its model prediction in the Cangzhou land subsidence area.

Creep-time curves and isochronous creep stress–strain curves under stepwise loading were obtained by using the Boltzmann superposition principle, and both types of curves were characterized by nonlinearity, and the creep curves as a whole showed a trend of stable development.

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The creep curves of the clayey soil specimens have obvious nonlinear characteristics, creep deformation increases gradually with the increase of time, but the increase rate generally shows a decreasing trend.

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