Ca2+ can be dissociated with quicklime added into over-wet soil, and then has the exchange reaction with the selected Na+ and H+ in the soil, reducing the thickness of the water film on the surface of the original soil particles and further lowering the water content and plasticity of the over-wet soil. In this paper, typical thickness and modulus values of the reinforced layer of quicklime-processing over-wet soil were selected. And then with the bi-wheel uniaxial BZZ-100 as an example and the multi-layer elastic model as the basis, then influencing path of the reinforced layer of quicklime-processing over-wet soil on the dynamical deviatoric stress in soil base was analyzed. It was found that the thickness and modulus of the reinforced layer of quicklime-processing over-wet soil both pose negative effect on the dynamical deviatoric stress in the soil base. And the effect of the former is weak, while that of the latter is significant.