Tunnel-boring soil

Tunnel-boring soil is produced by the excavation of a tunnel-boring machine. 

The chemical characterization of this soil is similar to that of conventional excavated soil. They can be class 3, class 2 or class 1. 

Their distinctive “toothpaste” appearance is the result of the action of the tunnel boring machine, which destructures the ground in order to excavate it. 

Tunnel-boring soil
Tunnel-boring soil

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