The indoor model experimental study on the physico-mechanical properties of pavement with weathered gravelly sands and argillite slate rock as the express railway embankment under quasi-static cyclic loads is introduced.Based on observations of some experiments

using biggest dry density and the optimum moisture content in its filling

the physico-mechanical properties including the moisture content of water

dry density

porosity ratio

angle of internal friction

cohesion value

displacements

stresses

permanent deformations

pressure distribution

bedding coefficient K30

deformation modulus Ev1 and deformation coefficient Ev2 of the embankment etc.

are obtained.With constitutive model for Drucker-Prager material

the stress and deformation characteristics of the pavement under quasi-static cyclic loads are analyzed by using finite element method.The numerical solutions are close with experimental ones.It is expected to put into use for design of pavement

control of compaction quality and construction in subgrade filling engineering.