Komatsu Hard Rock Mining Tunnel Boring Machine.
image copyright Komatsu. Used in relation to press release https://www.komatsu.jp/en/newsroom/2022/20220708
Czech Technical University (ČVUT) in Prague tunnel mapping robots. Photo: by ČVUT
https://aktualne.cvut.cz/en/press-reports/20220628-robodog-with-robotic-hand-embarked-on-his-first-mission-into-the-underground