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Abstract of the Article

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Assessment the effect of seismic wave on the ellipse tunnel with the disorder method

Authors:
[ ASAD NOORZAD ] - engineering college of Tehran university
[ ALI NOORZAD ] - water resorvior company in Tehran
[ BAHAREH BANI JAMALI ] - engineering college of Tehran university

Abstract:

Destroyed of many tunnels under seismic loading and hazards that applicated to the tunnel in JAPAN earthquake are the reason of expended researches of the effect of earthquake on the tunnels. This paper study the effect of SH waves that are one of the destroyed waves of earthquake on the tunnels with ellipse shape with the half analysis method. Contact the SH wave with the tunnel without the cover are the reason of separation of waves and centrifuse of dynamical strain and the reason of maximizing the seismic wave. Surveying of this method that is find in the interaction between the tunnels with around earth are done with making use of the disorder method in 2 dimensional shape. Effect of shearing waves in the earth of tunnel around wave ferecanse and rate of minimum diameter to maximum diameter , and ---angle of wave are the parameters that this paper survey the effect of them on the maximizing factor of earthquake in around of the tunnel. Final results are given as a maximizing factor and --- angle. Maximum of this factor is 60 degree and --- frecance is one that in this shape the amount of this factor is 40 degree.

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