The shaft (duct) is opened at two points, the first shaft (47 meters deep) is found at 1,695 m from the tunnel entrance on the Otsu side and the second shaft (20 meters deep) is located at 2,136 m from the entrance. |
竪坑(ダクトスペース)が2か所にあり、大津側の坑口(トンネル入口)から1,695mの位置に第1シャフト(深さ47m)、2,136mの位置に第2シャフト(深さ20m)がある。 |