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2013 (Vol. 5, Issue: 20)
Article Information:

Influence Mechanism of Lamella Joints on Tunnel Blasting Effect

Shiwei Shen, Lei Nie, Shulin Dai and Yan Xu
Corresponding Author:  Shiwei Shen 

Key words:  Blasting effect, hackly back break, lamella joints, mechanism, tunnel, ,
Vol. 5 , (20): 4905-4908
Submitted Accepted Published
September 27, 2012 December 11, 2012 May 15, 2013
Abstract:

In this study, we have a research of the influence mechanism of lamella joints on tunnel blasting effect. During the process of the tunnel blasting construction, primary structural planes make an important role for the effect of smooth blasting. Especially, it is difficult to attain the perfect blasting effect when the lamella joints intersect with the designed contour line. Coupled effect of the explosive stress waves and the explosive gas is deemed to the basic theory, analysis the blasting effect in the condition of single closed joint and lamella joints intersect with the designed contour line and test it combined with the tunnel engineering. Research results show that back break will occur at the same time in the condition of single closed joint, on the other hand, hackly back break will occur in the condition of the lamella joints.
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  Cite this Reference:
Shiwei Shen, Lei Nie, Shulin Dai and Yan Xu, 2013. Influence Mechanism of Lamella Joints on Tunnel Blasting Effect.  Research Journal of Applied Sciences, Engineering and Technology, 5(20): 4905-4908.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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