Simulation of articulated shield behavior at sharp curve by kinematic shield model

By taking into account ground displacement around the shield, the kinematic shield model had been proposed for single circular shield (Sugimoto & Sramoon 2002). This model was validated by the simulation of an earth pressure balanced (EPB) shield behavior along a straight alignment in a single layer of sandy gravel (Sramoon et al. 2002) and along a curve in a multilayered ground (Sugimoto et al. 2007). Extending this model to articulated shield, the articulated shield model was developed and validated by simulating the steady behavior of curve-only excavation (Sugimoto et al. 2002).