Analysis of Settlement of Group Pile Foundation in Linear Viscoelastic Soil

The settlement of a group pile foundation is the result elastic-plastic and rheological soil. Unfortunately, most research only considers elasto-plasticity piles or soils. Classical theories like Poynting-Thompson model provide some prediction for behavior groups, which cannot satisfactorily reflect total characteristics foundation. In current paper, we presented method to study behaviors in linear viscoelastic soil based on pile-pile interaction factors, calculated equation single groups under vertical loads that are derived, influence law end resistance, spacing, slenderness ratio, elastic modulus Poisson ratio load factors have been presented. Finally, typical predictive examples 2 × 2, 3 showing from field test. It found increase with pile-soil length-to-diameter but decrease distance diameter, diameter has little effect factor when spacing more than 10 d (d pile). error between test results computed data 14.9%, by present shows good agreement reported results, correlativity coefficients R2 greater 0.9223, signifies suitable theoretical calculation composite used strengthen would unique view quantitative characteristic