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https://www.nationalacademies.org/trb/events

New excavation technologies for underground construction (UTI-UTC 29)

This project explores the development and evaluation of innovative excavation technologies aimed at improving the efficiency, safety, and adaptability of underground construction. With a focus on non-traditional methods such as plasma blasting, water-jet cutting, and advanced mechanical excavation systems, the research investigates the performance, feasibility, and environmental impact of these techniques compared to conventional methods like tunnel boring machines (TBMs) and drill-and-blast. Experimental trials and numerical simulations assess rock fragmentation, energy consumption, dust and vibration levels, and compatibility with various geological conditions. The project also evaluates automation and remote-control capabilities to enhance worker safety in hazardous environments. Outcomes are expected to provide a pathway for more sustainable and adaptable excavation approaches, reducing costs and timelines while expanding the range of feasible tunneling applications.