Mechanism of Support in Anchor Type Retaining Wall — Model Tests and Numerical Simulations

To establish rational design and construction process, two-dimensional model tests are carried out varying the length and inclination of ground anchors. Numerical simulations with finite element method using FEMtij-2D are also carried out for the same scale as the model tests. Subloading t_ij model (Nakai and Hinokio, 2004) is used in the analyses to model the ground material. It has been revealed that installation of a longer anchor at the bottom part of the excavation area is very effective in reinforcing the effects of the earth retaining wall. Inclination of the ground anchor also has a significant effect on the displacement of the backfill ground and deformation of the retaining wall. The finite element analyses show very good agreement with the results of the model tests.