engineering. Tunnel damage survey shows that the tunnel portal section is the most easily to destroy and is the most weak parts(Li,2006). Especially at the high-intensity earthquake area, the stability analysis of the tunnel entrance, portal and side slope will be focused on in the field of the anti-seismic technology research. The mechanical characteristic of tunnel lining is a considerably complex process, the grade of surrounding rock is various and there are a variety of non-linear features(Luo,2008). It is a effective way to research the tunnel anti-seismic characteristic by the shaking table test in the earthquake engineering field because the establishment of non-linear equations of motion and the numerical solution is still not perfect(Chen,2006; Gong,2002; Yang, 2003; Zhou, 2005).

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