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Richard James Robbins (1933 - 2019) (Born: 1933 - Died: 30 May 2019 - Seattle,...actually born into tunnelling. He was the son of James Robbins, the inventor of the rock T...
Why choose Mechanized Tunnelling over Mechanized Tunnelling? Or vice versa? When...le excavating, if the soft ground unexpectedly turns to rocky groun...ploy another technique more suitable for excavating the rock....
cover tunnel photo by: Matt Brown from London, England / CC BY
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