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Showing: 1 to 10 of 564 matches for "failure and breakage of rock"  Page   1   2   3   4   5   6   7   8   9  next TITLE The Stress In Rock Around Surface Openings  SUMMARY ... Open or weakly-cemented discontinuities in the rock represent potential planes of failure, and these discontinuities generally appear as fractures, joints ... AUTHOR Merrill, R. H. ; Wisecarver, D. W. PUBLISHED 1967 TITLE Brittle Fracture Of Rocks  SUMMARY ... However, in practical rock mechanics, we may be concerned with the failure of rocks under highly inhomo- geneous conditions of stress so that before any ... AUTHOR Jaeger, J. C. PUBLISHED 1967 TITLE Computer Calculations Of Explosion-Produced Craters  SUMMARY ... We assume that failure occurs in a brittle material when either the tensile ... Hugoniot elastic limit, and high-pressure Hugoniot data for the rock near the ... AUTHOR Cherry, J. T. PUBLISHED 1967 TITLE Discussion - Of Session Three - Design Of Surface And Near-Surface Construction In Rock - Pfleider, E. P., University Of Minnesota  SUMMARY ... As deformation and failure of the rocks in the skin occurs then less support pressure is required and, as Hobbs shows, it is possible for the rock to stabilize ... PUBLISHED 1967 TITLE The Relationship Between Energy Release Rate, Damage, And Seismicity In Deep Mines  SUMMARY ... by K. Hodgson and NC Joughin The detailed mechanism of rockbursts and other forms of damage due to rock failure in underground mining is as yet unknown. ... AUTHOR Hodgson, K. ; Joughin, N. C. PUBLISHED 1967 TITLE Discussion - Of Session Two - Design Of Underground Excavations In Rock – Parker, J., White Pine Copper Company, Michigan  SUMMARY ... Visual obsenation of the deformation of roof and pillars (including failure due to ... arc calculated on the assumption that thc rock behaves as a gravit3- loaded ... AUTHOR Fairhurst, C. ; Starfield, A. M. PUBLISHED 1967 TITLE The Influence Of Environment On The Brittle Failure Of Rocks  SUMMARY ... Brittle failure of rock as evidenced by either extension -(tension) or shear fracture may be enhanced or suppressed in all rock types by suitably altering ... AUTHOR Heard, H. C. PUBLISHED 1967 TITLE The Effect Of Nonelastic Behavior Of Rocks  SUMMARY ... In Project Salt Vault, the main objective of the rock mechanics investigation is to obtain data leading to a design ... 208 FAILURE AND BREAKAGE OF ROCKS ... AUTHOR McClain, W. C. PUBLISHED 1967 TITLE Underground Excavation And Support  SUMMARY ... of failure. Any incipient failure of the rock which results in loosening, open fractures, etc., results in slack in the system. ... AUTHOR Reed, John J. PUBLISHED 1967 TITLE Drilling–Equipment, Methods and Materials - Two-Dimensional Study of Rock Breakage in Drag Bit Drilling at Atmospheric Presure  SUMMARY ... a characteristic value of a given rock, it typically ranges ... that this type of "shear failure" may actually ... Evans" has postulated a tensile-breakage theory for ... AUTHOR Gray, K. E. ; Armstrong, F. ; Gatlin, C. Showing: 1 to 10 of 564 matches for "failure and breakage of rock"  Page   1   2   3   4   5   6   7   8   9  next Search Again