Evolution of New Austrian Tunnelling Method (NATM) in Tunnelling

Author Name : Rudranath Saha, Dr. Biman Mukherjee

ABSTRACT

Tunnels have performed a crucial function in humanity's development and survival at some stage in history. Tunneling has developed at some point in history, starting with cave introduction and progressing via water management, underground transportation, mineral extraction, and warfare. Civil engineering tunneling technology has superior leaps and limits because it turned into first hand-dug with rudimentary units like chisels, hammers, spades, and shovels. Rapid advances in geological and hydro-geological engineering, tunnel design, capacity, creation technologies, and pace and protection at some stage in operations are all contributing to this. Through purposeful and knowledgeable decisions, safety is being integrated into all phases of construction and operations. The New Austrian Tunneling Method (NATM) of tunneling is thought to be the most successful method in areas with diverse geology since it works on a different level.

KEYWORDS: Tunneling, NATM, Shotcrete, Lattice girder, Grouting.