Advancements in Tunneling and Underground Excavation by Drill & Blast
...9;. Regardless of whether religiously inclined for TBM tunneling or Drill & Blast, one needs to read this. D...gonline.com/advancements-in-tunneling-and-underground-excavation-by-drill-blast/Reply on topic: Why are all tunnels not excavated via Tunnel Boring Machines?
...des some solid reasons for preferring the Drill & Blast over the tunnel boring machin...n-tunneling-and-underground-excavation-by-drill-blast/ "Tunneling by drill-...cross passages, shafts, penstocks, etc., Drill and Blast is often the only possible me...Reply on topic: Advancements in Tunneling and Underground Excavation by Drill & Blast
https://tunnelingonline.com/advancements-in-tunneling-and-underground-excavation-by-drill-blast/Why are all tunnels not excavated via Tunnel Boring Machines?
We have TBM technology but I am hearing there are still some tunnels excavated via NATM, Drill & Blast instead of TBM. Why?Reply on topic: Bulgaria: Zheleznitsa Tunnel Construction Collapsed. 3 Workes in Hospital
This news English better than my English. I think tunnel is drill and blast method tunnelling. https://www.novinite.com/articles/205039/Rock+Mass+Collapsed+During+the+Construction+of+the+Zheleznitsa+Tunnel%2C+Three+Workers+InjuredReply on topic: Australia: Snowy Hydro refutes the claims that the TBM stopped boring
In a separate development; Sky News says Snowy 2.0 suffered partial tunnel collapse due to “drill and blast” operations in an adjacent tunnel. The part ofter 3:47 are relevant. https://youtu.be/ZY5rPjDxXGg?t=226
cover tunnel photo by: Matt Brown from London, England / CC BY
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