Equipment: 5 tons ice brick machine
Purpose: tunnel cooling
Project background introduction:
The Zanggar Tunnel is located in the Yarlung Zangbo Canyon area in Tibet. It is located at an altitude of more than 3,500 meters. The total length of the tunnel is 8.876 kilometers. The project cost is 458 million yuan. It is an L-level high-risk tunnel and is divided into entrance, No. 1 horizontal tunnel, and No. 2 horizontal tunnel. The construction of four work areas for export and export has a contract period of 54 months and is listed as a key and difficult project to control across the entire line.
The air in the tunnel is thin, with little oxygen content, and the wall temperature reaches 60 degrees Celsius
Cooling tunnels with ice blocks