Underground structures

Underground structures refer to constructions that are built beneath the Earth's surface, either partially or entirely. These structures serve a wide range of purposes, from transportation and utilities to storage, shelter, and research. Designing and constructing underground structures requires careful consideration of factors such as geology, engineering, safety, and environmental impact. Tunnels, subway and metro systems, underground parking garages, underground storage and transportation facilities are some examples of underground structures. As with any construction project, it's important to consider environmental impact, long-term maintenance, and potential challenges related to groundwater, soil stability, and other subsurface conditions.