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The new Austrian tunneling method (NATM), also known as the sequential excavation method (SEM) or sprayed concrete lining method [1] (SCL), is a method of modern tunnel design and construction employing sophisticated monitoring to optimize various wall reinforcement techniques based on the type of rock encountered as tunneling progresses.
The tunnel significantly enhances connectivity within the Kashmir Valley and is a key component of India's efforts to improve transportation infrastructure in the region. The tunnel was constructed using the New Austrian Tunneling Method (NATM) and was built by Afcons Infrastructure. It features modern safety systems, including escape tunnels ...
Franz Pacher (28 April 1919 in Prostřední Suchá, present-day Czech Republic – 3 March 2018 in Salzburg, Austria [1]) was an Austrian civil engineer and a pioneer of modern tunneling. He is one of three men who are considered to be the chief developers of the new Austrian tunneling method (NATM). [2]
The tunnel constructed using the latest New Austrian Tunneling Method (NATM) is much below the snow line allowing all weather travel without the challenges of snow clearance. The tunnel will add to the tourist potential of Tawang and attract more tourists making Tawang a more popular destination in North East region.
The 376 and 376 m (1,234 and 1,234 ft)-long twin-tube tunnel carrying three lanes of traffic in each direction. [ 1 ] The tunnel was constructed by Tekfen in New Austrian Tunnelling method (NATM).
The Stand-up time classification by Lauffer is often regarded as the origin of the New Austrian Tunnelling Method (NATM). The original system as developed by Lauffer is nowadays by many regarded as obsolete but his ideas are incorporated in modern rock mechanics science, such as the relation between the span of a tunnel and the stand-up time ...
A small liberal party on Friday unexpectedly quit coalition talks on forming a new Austrian government, throwing into disarray negotiations that had sidelined the far-right Freedom Party (FPO ...
The new Austrian tunnelling method (NATM)—also referred to as the Sequential Excavation Method (SEM) [35] —was developed in the 1960s. The main idea of this method is to use the geological stress of the surrounding rock mass to stabilize the tunnel, by allowing a measured relaxation and stress reassignment into the surrounding rock to ...