Ключевые слова: beneath, bore, borehole, burrowing, cavern, construction, deep excavation, dig, digging, drilling operations, earthworks, engineering, excavation, geotechnical engineering, infrastructure, large scale, massive, mining, project, shaft, subsurface, subsurface exploration, subterranean, subterranean infrastructure, subway, surface, tunnel, tunnel boring machine, tunnel network, tunneling, underground, underground city, underground construction, underpass, underworld, urban development,