Machine Foundations on Fiber Concrete Tunnel in Reinforced Sand

Document Type : Original Research


Department of Civil Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran



The superimposing of static and dynamic loads on such as machine foundation which are setting on the tunnels will cause differential and impermissible settlements. These settlements sometimes may reason irreversible damage to financial and human factors. This paper investigates the effects of the soil damping parameters, tunnel lining types and tunnel lining thickness on the circular foundation settlement under the influence of cyclic loads. PLAXIS 2D DYNAMIC is used as the FEM code to analyze models as well as investigating the effects of number of geogrid layers as a reinforcement element on the foundation settlement rested on the bored tunnel to obtain safe condition.