Japan’s Kajima completed world’s first TBM/NATM hybrid tunnel in Niigata Prefecture
Kajima Corporation announced on May 25 that it has completed the excavation of a water pipeline tunnel using a hybrid tunnel boring machine that can also work in the NATM. https://xaydungtoday.vn/japans-kajima-completed-worlds-first-tbm-natm-hybrid-tunnel-in-niigata-prefecture/MMRC does 100% excavation of scissor crossover by using NATM method
After 498 days of excavation via the New Austrian Tunnelling Method, the Mumbai Metro Rail Corporation (MMRC) has finished the excavation work of scissor crossove...Reply on topic: Why are all tunnels not excavated via Tunnel Boring Machines?
This article provides some solid reasons for preferring the Drill & Blast over the tunnel boring machine boring. https://tunnelingonline.com/advancements-in-tunnelin...Tunnelling job. Manager/Engineer/Supervisor(Tunnel/TBM/NATM)-UG
L&T Geostructure Manager/Engineer/Supervisor(Tunnel/TBM/NATM)-UG https://www.monsterindia.com/job/manager-engineer-supervisor-tunnel-tbm-natm-ug-l-t-geostructure-india-6941000
cover tunnel photo by: Matt Brown from London, England / CC BY
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