Dynamics of buried structures in the surface explosion with passive defense approach

The need to design secure underground structures against earth-penetrating bombs, not secret. Since our country is located on an earthquake belt, mostly in the design of seismic behavior of structures is given. In this study, the behavior of seismic resistant tunnel under blast loads will be examined to better determine their weaknesses. and terrestrial environments has the ability to dynamically analyze, to study the loading surface wave propagation and damping caused by the explosion and its impact on the stability of underground structures, are used. Studies show that with increasing depth of burial effects of surface waves bombs on underground structures is reduced.