TUNNEL ACTIVITIES presents a selection of some typical examples regarding to the numerous tunnel projects and technical developments in Japan. It is published every 2 years, and each articles in the latest version will be opened at this Web page.
Click on the issue below to access.
![](https://www.japan-tunnel.org/en/sites/www.japan-tunnel.org.en/files/tnnl_book_cover_pic/%E3%82%BB%E3%82%B0%E3%83%A1%E3%83%B3%E3%83%88%20001%20-%20%E3%83%88%E3%83%B3%E3%83%8D%E3%83%AB2020.jpg)
![](https://www.japan-tunnel.org/en/sites/www.japan-tunnel.org.en/files/tnnl_book_cover_pic/Cover_Tunnel2014.jpg)