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MODERN TUNNELLING TECHNOLOGY 2011, Vol. 48 Issue (2) :17-19    DOI:
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Countermeasures for Blasting Safety in Meilingguan Tunnel with Gases
(Lanzhou-Chongqing Railway Co., Lanzhou  730050)
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Abstract Sections of DK607+800~DK610+050 and DK613+350~DK614+950 of Meilingguan tunnel on Lanzhou-Chongqing railway were designed according to the tunnel with rich gases. While the mechanism of gas explosion is very complex, shock wave, gaseous products and hot solid particles may be involved in the ignition reaction of gas. In view of the characteristics and harm of gas stratum in Meilingguan tunnel, the paper discusses the safety countermeasures for the blasting operation in the construction of the tunnel.
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LIU Xing-Ping
Keywords： Tunnel with gases   Blasting   Safety   Countermeasure     
Abstract： Sections of DK607+800~DK610+050 and DK613+350~DK614+950 of Meilingguan tunnel on Lanzhou-Chongqing railway were designed according to the tunnel with rich gases. While the mechanism of gas explosion is very complex, shock wave, gaseous products and hot solid particles may be involved in the ignition reaction of gas. In view of the characteristics and harm of gas stratum in Meilingguan tunnel, the paper discusses the safety countermeasures for the blasting operation in the construction of the tunnel.
Keywords： Tunnel with gases,   Blasting,   Safety,   Countermeasure     
published: 2011-03-04
Cite this article:   
LIU Xing-Ping .Countermeasures for Blasting Safety in Meilingguan Tunnel with Gases[J]  MODERN TUNNELLING TECHNOLOGY, 2011,V48(2): 17-19
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http://www.xdsdjs.com/EN/      或     http://www.xdsdjs.com/EN/Y2011/V48/I2/17
　
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