Tunnel stop

The start of construction of a tunnel is referred to as a tunnel stop or tunnel cut . A tunnel stop with a tunnel boring machine is called turning . The tunnel piercing is usually a symbolic act during a ceremony. It is comparable to the groundbreaking ceremony .

The highlight of a tunnel attack is the detonation of the first explosive charge. This is usually done by the tunnel godmother.

See also

• Piercing (tunnel construction) - the second important celebration when driving on both sides