A Sinkhole on the Road Happening in Real Time as Cars Pass

Tunnelling breakthrough on Riyadh Metro

The Cross rail tunnelling


Rockburst (EN): A spontaneous, violent fracture of rock that can occur in deep mines or tunnels.

Colpo di tensione (IT): Una frattura violenta e spontanea della roccia che può verificarsi in miniere o gallerie profonde.

Coup de toit (FR): Une violente rupture spontanée de roche qui peut se produire dans les mines ou tunnels profonds.

Estallido de Rocas (SP): Una fractura violenta espontánea de roca que puede ocurrir en las minas o túneles profundos.

New Austrian Tunnelling Method (NATM)

Example of TBM Tunneling

Melbourne Metro Rail Line

Bertha reaches daylight – Feb. 19, 2015

Bertha pushes into the Access Pit – Mar. 03, 2015

Top 10 Longest MEGA-Tunnels

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