Abstract:Disturbed state concept(DSC) utilizes constitutive models to depict material responses. The response is obtained by two weight-averaging reference responses values. In DSC,the disturbance factor does not couple with the constitutive function. The incremental form of stress shows conciseness of DSC. DSC superposes disturbance factor on reference responses to revise them to reach actual response. It is the reference response,but not the constitutive model that is rectified by disturbance factor. The essence of DSC is to use regular constitutive models to obtain proper results. The course of rectification of elastoplastic problem results by DSC is the one of combination of DSC and elastoplasticity. The combination of DSC and Biot consolidation is put forward after the combination of DSC and elastoplasticity is accomplished,with the represention of equilibrium function and synthesis function. Water-soil coupled synthesis function group gives the displacement and pore pressure of any time. Detailed formula derivation and finite element analysis are presented. Finite element expression of the synthesis function group is derived based on effective stress principle,continuum condition and equilibrium function. Vertical strain of material is the variable of disturbance factor evolvement function. The strain of each reference response shares the same value. The results show that the material deformation calculated by DSC is greater than that calculated by elastoplastic model,which reveals similarity to results obtained by utility of damage theory.