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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 230-232The Responses of Jointed Rock Mass under Dynamic...

The Responses of Jointed Rock Mass under Dynamic Loads

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Abstract:

Joints can reflect and transmit stress waves, thus joints affect rock fracturing, and accordingly they could affect blasting efficiency. In this paper, numerical and experimental investigations have been implemented and the effect of joints on wave propagation and rock fracturing has been discussed. A dynamic numerical model of jointed rock mass has been established by using finite difference method. The simulation results show that as joints are parallel to wave propagation, the corresponding rock damage zones increase. Blasting experiments by using artificial joints have been carried out. Generally the experimental results agree with our numerical results.

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Periodical:

Advanced Materials Research (Volumes 230-232)

Pages:

251-255

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.230-232.251

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Online since:

May 2011

Authors:

Zhe Ming Zhu

Keywords:

Artificial Joint, Blasting Load, Dynamic Numerical Simulation, Finite Different Method

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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