The Study Of FEM For Striped Reinforcement Of Reinforced Earth-Retaining Wall

Reinforced earth is composite which is composed by reinforced material into soil. As a rising earth structure with many merit such as beautiful shape, easer conformable, save cost, and be conformable with any terrain, etc, the reinforced earth-retaining wall is being used in more and more fields and having received fast development. Even now the research on theory drops behind the construction.In this paper, a rigid striped reinforcement of reinforced earth-retaining wall is analysed by nonlinear finite element methods. The material's constitutive model is Duncan-Chang E-V model. Between striped reinforcement and soil, facing and soil, Goodman element is introduced to simulate the effect between them.Through the calculation to the Shen Zhen He river reinforced earth-retaining wall by FEM, the regularities of distribution of the lateral displacement, fill settlement, striped reinforcement tensile force and lateral facing pressure are analysed. These results are contrast with the scene monitoring to certificate the computational method's validity, the rational of material's constitutive model and interface element. Discuss the different shape of the fill's fracture plane and the sliding rang, which is calculated by Rankine's earth pressure theory, 0.3H method in specification, FEM and scene monitoring.Discuss the feasibility of the 3-D FEM calculating to the reinforced earth-retaining wall. And a valuable research aspect is advanced.Different fill lays, different reinforcement length, different space between reinforcements do effect on the calculation. So several work conditions are dong to analyse the influence. And the results provide feference for numerical simulation and word design.