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Author : Verne E. Hooker,David L. Bickel
Publisher : Unknown
Page : 40 pages
File Size : 45,6 Mb
Release : 1974
Category : Gages
ISBN : UOM:39015078516385
Author : David L. Bickel
Publisher : Unknown
Page : 36 pages
File Size : 54,8 Mb
Release : 1985
Category : Rock mechanics
ISBN : UOM:39015078458562
Author : Verne E. Hooker,David L. Bickel
Publisher : Unknown
Page : 0 pages
File Size : 53,5 Mb
Release : 1974
Category : Gages
ISBN : OCLC:1431204531
The U.S. Bureau of Mines' three-component borehole deformation gage that has all elements in the same plane is designed to measure diametral deformations of a 1-1/2 inch borehole during stress relief from overcoring with a 6-inch overcoring diamond drill bit. Each overcore provides sufficient information to calculate the secondary principal stresses and orientation for the plane of measurement. If measurements are obtained from at least three holes, a three-dimensional representation of the average ground stress components can be determined.
Author : David L. Bickel
Publisher : Unknown
Page : 190 pages
File Size : 41,9 Mb
Release : 1993
Category : Ground control (Mining)
ISBN : COLUMBIA:CU72011467
Author : W. Hustrulid,G.A. Johnson
Publisher : CRC Press
Page : 1096 pages
File Size : 43,7 Mb
Release : 2020-12-18
Category : Technology & Engineering
ISBN : 9781000151367
The theme of the 31st US Symposium on Rock Mechanics is 'Rock Mechanics contributions and challenges', having as objective the examination and quantification of the progress that has been achieved in addressing the major practical challenges facing the science of rock mechanics and mine design. The 124 papers included in the proceedings cover areas such as: experimental studies (laboratory and field); conceptual, analytical, and numerical modeling; design and construction methods. 35 papers deal with practical mining problems and include information on rock reinforcement technology, blasting, rock bursts, open pit mining, remote sensing and borehole geophysics, mechanical fragmentation, and subsidence. Areas emphasized are coal and metal mine design problems. Other papers deal with the newest computer models, new instruments, fracture mechanics, new laboratory testing techniques, and in situ testing.
Author : Eugene H. Skinner,Galen G. Waddell,John P. Conway
Publisher : Unknown
Page : 100 pages
File Size : 52,8 Mb
Release : 1974
Category : Rock deformation
ISBN : UOM:39015078484485
Author : John J. Sammarco
Publisher : Unknown
Page : 498 pages
File Size : 47,9 Mb
Release : 1990
Category : Coal-mining machinery
ISBN : STANFORD:36105006337773
Author : Anonim
Publisher : Unknown
Page : 554 pages
File Size : 40,8 Mb
Release : 1973
Category : Mine safety
ISBN : UCSD:31822009767385
Author : J.A. Hudson
Publisher : Elsevier
Page : 971 pages
File Size : 51,6 Mb
Release : 2014-06-16
Category : Technology & Engineering
ISBN : 9781483297972
Rock Testing and Site Characterization
Author : B. Amadei,O. Stephansson
Publisher : Springer Science & Business Media
Page : 524 pages
File Size : 52,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401153461
Rock masses are initially stressed in their current in situ state of stress and to a lesser natural state. Whether one is interested in the extent on the monitoring of stress change. formation of geological structures (folds, faults, The subject of paleostresses is only briefly intrusions, etc. ), the stability of artificial struc discussed. tures (tunnels, caverns, mines, surface excava The last 30 years have seen a major advance our knowledge and understanding of rock tions, etc. ), or the stability of boreholes, a in the in situ or virgin stress field, stress. A large body of data is now available on knowledge of along with other rock mass properties, is the state of stress in the near surface of the needed in order to predict the response of rock Earth's crust (upper 3-4km of the crust). masses to the disturbance associated with those Various theories have been proposed regarding structures. Stress in rock is usually described the origin of in situ stresses and how gravity, within the context of continuum mechanics. It is tectonics, erosion, lateral straining, rock fabric, defined at a point and is represented by a glaciation and deglaciation, topography, curva second-order Cartesian tensor with six compo ture of the Earth and other active geological nents. Because of its definition, rock stress is an features and processes contribute to the current enigmatic and fictitious quantity creating chal in situ stress field.
Author : K. Sugawara,Y. Obara,A. Sato
Publisher : CRC Press
Page : 612 pages
File Size : 48,5 Mb
Release : 2020-12-18
Category : Technology & Engineering
ISBN : 9781000151336
This publication contains three special lectures, six keynote addresses and sixty-eight technical papers presented at the symposium. The wide variety of topics covered are grouped in the proceedings according to subject.
Author : Robert Blickensderfer,Joseph H. Tylczak,Brent W. Madsen
Publisher : Unknown
Page : 816 pages
File Size : 44,9 Mb
Release : 1985
Category : Mechanical wear
ISBN : STANFORD:36105019659072
Author : United States. Bureau of Mines
Publisher : Unknown
Page : 564 pages
File Size : 50,9 Mb
Release : 1975
Category : Mineral industries
ISBN : IND:30000065660627
Author : Anonim
Publisher : Unknown
Page : 302 pages
File Size : 51,8 Mb
Release : 1988
Category : Mineral industries
ISBN : UCBK:C049523116
Author : David K. Ingram,Gregory M. Molinda
Publisher : Unknown
Page : 28 pages
File Size : 49,9 Mb
Release : 1988
Category : Coal mines and mining
ISBN : UOM:39015078481374
