An investigation of interaction about rigidity of tunnel

Earthquakes are potentially devastating natural events which threaten lives, destroy properties, and disrupt life-sustaining services. The primary cause of earthquakes is the rupture of faults in the earth’s crust and the associated rapid slip on these faults. In most cases, due to the existence of fault ruptures as well as local soil failures, permanent ground deformations occur during a strong earthquake event. Permanent ground deformations, due to fault rupture, is a significant threat for many man-made structures including houses, highways, tunnels, bridges, as well as water, gas, oil and sewer lines. In order to investigate the pattern of rupture propagation for different relative tunnel positions. To examine the effect of tunnel rigidity on the fault-tunnel interaction, test was conducted with similar conditions except that the rigidity of tunnel was higher due to increasing the diameter and the thickness of the tunnel.

Keywords:

Normal Fault Rupture , Tunnel , Sand , Tunnel Interaction