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在砂井地基粘弹塑性分析研究工作的基础上，考虑了砂井施工引起的地基土结构的初始损伤，通过试验确定初始损伤比、重塑土的弹性模量和渗透系数以及粘弹塑性本构模型的参数，在基础沉降的粘弹塑性分析中引进了初始损伤，从而提高了计算精度。
Based on the viscoelastoplastic analysis of sand-dwelling foundations, the initial damage of foundation soil structure caused by sand-well construction was considered. The initial damage ratio, the elastic modulus and permeability coefficient of remolded soil, and the viscoelastic plasticity were determined through experiments. The parameters of the constitutive model introduce the initial damage in the viscoelastic-plastic analysis of the foundation settlement, thereby improving the calculation accuracy.