Disaster Management Manual
A manual for practitioners and decision makers!

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Tunnel is mainly constructed in mountainous area and underground in urbanized areas. Since, the surrounding geology varies from hard rock to soft soil, the design of the tunnel is varied.

But in any case, a tunnel should have enough strength against underground pressure or dynamic forces caused by earthquakes.

In addition, in case of fire caused by a traffic accident, fireproof measures should also be considered.

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