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Study on the mechanical characteristics of hard rock strata and the response law of overlying strata stress field under structural transient excitation. [PDF]
Sci RepYan Z +6 more
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Experimental Study on Mechanical Effects of Pore-Permeability Fractal Characteristics of Coal Rock Based on Variable-Mass System of Coal Mine Geological Water. [PDF]
ACS OmegaZhu X, Zhang T, Bai J, Pang M.
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IEEE Transactions on Industry Applications, 1977
A technique has been developed for rock breaking which could be considered as an alternative to drilling and blasting. A series of tests and measurements involving initial dielectric breakdown achieved with high frequency power, followed by highly localized heating achieved by capacitor discharge energy is described.
R. S. Segsworth, K. Kuhn
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A technique has been developed for rock breaking which could be considered as an alternative to drilling and blasting. A series of tests and measurements involving initial dielectric breakdown achieved with high frequency power, followed by highly localized heating achieved by capacitor discharge energy is described.
R. S. Segsworth, K. Kuhn
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Developments in rock-breaking techniques
Tunnelling and Underground Space Technology, 1994Abstract A problem with secondary breaking at an Australian mine led to a study of new rock-breaking technologies. Many of the techniques being developed had emerged from the thrust in the U.S.A. for continuous drill-break excavation. Such approaches to rock breaking highlighted the applicability of what normally would be classified as tunnelling ...
C. Murray, S. Courtley, P.F. Howlett
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Physics, 2014
A new computational model of porous materials like sandstone shows what happens microscopically when the material is stressed to the breaking point.
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A new computational model of porous materials like sandstone shows what happens microscopically when the material is stressed to the breaking point.
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Soviet Mining Science, 1980
Rock can be successfully drilled with a tubular rock-breaking tool in a high-energy percussive rig, fitted over the outer surface of the striker mass, surrounding it, and pushed ahead of the striker mass by an amount of the order of the wall thickness of the tool.
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Rock can be successfully drilled with a tubular rock-breaking tool in a high-energy percussive rig, fitted over the outer surface of the striker mass, surrounding it, and pushed ahead of the striker mass by an amount of the order of the wall thickness of the tool.
openaire +1 more source