abstract:The New Austrian Tunnelling method (NATM) is used in tunnel excavation and construction. It was developed between 1957 and 1965 in Austria, and was given its name in London in 1962 to distinguish it from the old Austrian tunnelling approach.
The expresswaytunnelsconstructionin Henan provinceusednewAustriantunnelling method, whichemphasized onsitemonitoringand measuring, and improving designandconstruction using the results.