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The Standard For The Rebound Rate Of Tunnel Shotcrete

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The Standard For The Rebound Rate Of Tunnel Shotcrete
Latest company news about The Standard For The Rebound Rate Of Tunnel Shotcrete

What is the standard for the rebound rate of tunnel shotcrete?

 

The rebound rate of shotcrete in tunnel projects is generally 30%, which is a big loss. Through technical improvement and strengthened management, the rebound rate of shotcrete can be controlled to about 20%. The side wall is not more than 15%, and the top arch is not more than 25%.
Shotcrete is a construction method of spraying fine stone concrete with a pressure spray gun. The rebound rate of the spraying needs to be measured by pre-buried monitoring instruments, such as rebound testers.

Pub Time : 2025-06-16 16:41:37 >> News list
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