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List of products by author: K. Urakawa
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A Study on the Criteria for Rehabilitation of Old Mountain Tunnels Considering the Risk on Damages by Big Earthquake
Abstract: Of the road tunnels managed in Japan, the proportion of tunnels over 50 years after construction is currently around 20%, but will increase to over 50% in 20 years. In addition, Japan is an earthquake-prone country, and the risk of earthquake occurrence is high. This suddenly decreases the soundness of any tunnel within the influence zone, and there have been reports of cases of large-scale...
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