Naturally deposited or residual soils exhibit more complicated behavior than re- molded clays.A dual-surface damage model for structured soils is developed based on the ther- modynamics framework established in our first paper.The shift stresses and the transformation between the generalized dissipative stress space and actual stress space are established following a systematic procedure.The corresponding constitutive behavior of the proposed model is deter- mined,which reflects the internal structural configuration and damage behavior for geomaterials. Four evolution variables k_j~i(i=D,R;j=V,S)and the basic parametersλ,s,v and e_0 are introduced to account for the progressive loss of internal structure for natural clays.A series of fully triaxial tests and isotropic compression tests are performed for structured and reconstituted samples of Beijing and Zhengzhou natural clays.The validation of the proposed model is examined by comparing the numerical results with the experimental data. Naturally deposited or residual soils exhibit more complicated behavior than re- molded clays. A dual-surface damage model for structured soils is developed based on the thermodynamics framework established in our first paper. Shift stresses and the transformation between the generalized dissipative stress space and actual stress space are established following a systematic procedure. The corresponding constitutive behavior of the proposed model is deter- mined, which reflects the internal structural configuration and damage behavior for geomaterials. Four evolution variables k_j ~ i (i = D, R; a series of fully triaxial tests and isotropic compression tests are performed for structured and reconstituted samples of Beijing and Zhengzhou natural clays. The validation of the proposed model is examined by comparing the numerical results with the experimental da ta