Experimental research on the expansion of blast cavity of de-coupling charge in coal

SUO Yong-lu; WANG Xiao-lin

doi:10.11883/1001-1455(2005)01-0054-05

Volume 25 Issue 1

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SUO Yong-lu, WANG Xiao-lin. Experimental research on the expansion of blast cavity of de-coupling charge in coal[J]. Explosion And Shock Waves, 2005, 25(1): 54-58. doi: 10.11883/1001-1455(2005)01-0054-05

Citation:

SUO Yong-lu, WANG Xiao-lin. Experimental research on the expansion of blast cavity of de-coupling charge in coal[J]. Explosion And Shock Waves, 2005, 25(1): 54-58. doi: 10.11883/1001-1455(2005)01-0054-05

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Experimental research on the expansion of blast cavity of de-coupling charge in coal

doi: 10.11883/1001-1455(2005)01-0054-05

1.
Xi’an University of Science & Technology, Xi’an 710054, Shaanxi, China

Publish Date: 2005-01-25

Abstract

Abstract

The expansion of the blast cavity of de-coupling charge in coal is investigated using the pulse X-radiation photography. The expansion speed and bound of the cavity, the energy transferring factor of shock wave, and the particle velocity at different distances from the blast hole centers are obtained.
- mechanics of explosion,
- expansion of blast cavity,
- pulse X-radiation,
- coal body,
- displacement speed