Analytical model of interaction between hexagonal wire mesh and silty sandbackfill

The interaction behavior between hexagonal wire mesh and silty sand backfil l can be evaluated from pullout tests. The pullout resistance of the hexago nal wire mesh reinforcement consists of two components, namely friction res istance and passive bearing resistance. The friction resistance - relative displacement relationship of a hexagonal wire mesh can be simulated by a li near elastic - perfectly plastic model. The passive bearing resistance of a n individual bearing member can be modelled by a hyperbolic function. The f riction resistances for galvanized and PVC-coated hexagonal wire mesh were 25 and 21%, respectively, of the total pullout resistance. A new analytical model for predicting the pullout resistance of hexagonal wire mesh reinfor cement has been proposed. The proposed solution can estimate the maximum pu llout force at different reinforcement levels from observed horizontal move ment of a hexagonal wire mesh reinforcement.