Boring in exceptionally tough, high-stress conditions

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Authors: Nick Barton
Cited by: 0

Abstract

In Figure 44 , the adjectives tough, very tough, exceptionally tough and so on are implied when the Q tbm value exceeds 100, 1000 and 10,000. The Q TBM range does not stop at 10,000 however, a fact that is suitably demonstrated by Table 16 .

Fields of Study & Subjects

Tunneling and Rock Mechanics Advanced machining processes and optimization Drilling and Well Engineering

Publication details

Journal / source
CRC Press eBooks
Pages
91–94
Publication date
19 January 2026
Language
EN
Document type
Book chapter