Blast-hole tension fields research under static-dynamic method of the block stones extraction

T.V. Grebeniuk, K.K. Tkachuk, S.V. Dyniak

Abstract


Experimental investigation method of static and dynamic stress fields interaction while block stones extraction by static-dynamic blast-hole method is developed.

Experimentally discovered effect of the pulse «erosion» indicates that the impulses transferred by dynamic perturbations can make only a minor contribution to the emergence of crack in the edge of statically loaded hole.


Keywords


stress field; blast-hole; deformation; block stone; strain gauge

References


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DOI: http://dx.doi.org/10.20535/2079-5688.2014.24.29373

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ISSN 2079-5688 (Print),  ISSN 2519-2167 (Online)