Abstract

With the frequent occurrence of earthquakes, which cause severe damage to some underground structure, the existing domestic and international aseismic norms about underground caverns become too briefly, which can not adapt to the development of underground tunnels in high intensity earthquake areas. Now, our aseismic study of expressway tunnel is in urgent need. Combining with the project of aseismic and shock absorption of tunnel in YALU expressway, this paper study the seismic dynamic response of the shallow double-hole highway tunnel. The research shows that: rock-level has important effect on seismic dynamic response of the double-hole tunnel; with the the improvement of rock strength and integrity , the seismic response of tunnel lining tends to decrease.

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