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Hanging rocks: scale or fail? | Engineer Live

Scaling involves the removal of dangerous, hanging rocks before they fall due to some unplanned action. Maurice Jones reports

References Tunnelling - Herrenknecht AG

Unique number of successfully mastered tunnel projects: Convince yourself of our leading expertise.

Herrenknecht world wide - Herrenknecht AG

Contact us directly and personally – anywhere in the world. _____ Herrenknecht is an internationally operating family enterprise with headquarters in Germany.