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Publications by [Barton N.]

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<p>Although many intact rock types can be very strong, a critical confining pressure can eventually be reached in triaxial testing, such that the Mohr shear strength envelope becomes horizontal. This critical state has recently been better defined, and correct ...
Reference: ournal of Rock Mechanics and Geotechnical Engineering Volume 5, Issue 4, Pages 249-334 (August 2013)
After 35 years of use throughout the tunnelling world, the RMR and Qclassifications have proved themselves on numerous projects. They stillface misconceptions however, as reflected in recent articles in T&amp;TInternational. Here, Nick Barton, of Nick Barton ...
Reference: Tunnels & Tunnelling International FEBRUARY 2008