hand-mined tunneling

Hand-mined tunneling is an ancient practice still used for shorter, smaller tunnels. Techniques like forepoling and breasting are employed, especially in unstable ground. This involves driving planks ahead to support the roof and sides. In more stable conditions, steel liner plates can be erected by hand and bolted together, often reinforced with ribs and a concrete lining. While less economical than mechanized methods for large projects, hand-mining allows for precise work with minimal ground loss. Historically, ancient civilizations used hand-mining for irrigation, passages, and even entire temples carved into rock.12