I was aware of long tunnels under the Alps, but I was not aware that India is building so many long tunnels under the Himalayans. Unfortunately, the Himalayan Mountains have serious faults that make tunneling dangerous.
The B1M
posted four images with the comment:
Digging deep. India is building its longest ever tunnel in one of the world’s most dangerous locations 😮
 |
| 1 |
 |
| 2 |
 |
| 3 |
 |
| 4 |
This video describes some of the tunneling efforts including the collapse of the Silkkyara Tunnel and the subsequent rescue of 41 people. Four rescue methods were launched in parallel. The auger method one.
The 9km Atal Tunnel has been completed.
The 13km long Zojila Tunnel is currently being built. For it, they are using a new construction technique called the "New Austrian tunnelling Method." First of all, ground stability is monitored continuously. The construction uses rock bolts, steel ribs and shotcrete. Then they add a waterproof lining and another layer of concrete. This technique was used for the Silkkyara Tunnel, but they evidently did not properly adjust their approach as and when problems occurred.
No comments:
Post a Comment