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Issue:ISSN 1006-5539
          CN 51-1183/TE

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The analysis of Guan-yin Mountain tunnel blasting impacting on the surrounding sensitive structures
Author of the article:HU Wen-jun
Author's Workplace:China Petroleum Engineering Southwest Company
Key Words: Tunnel construction; Buddha protection; Blasting control; Attenuation law
Abstract:In order to avoid Guan-yin Mountain tunnel excavation impact on the surrounding sensitive structures, it is necessary to research the vibration velocity decay law of the surface particle when drilling and blasting tunnel excavation program. By studying the formation and attenuation of seismic waves law when the tunnel blasting, the paper develops the different rock blasting program according to the geological conditions of Guanyin Mountain National Forest Park. And detailedly discusses the blast-hole layout, the undercutting eye arrangement, the way of filling powder, and the choice of blasting parameters in the different blasting program. Finally, the paper gets the reasonable blasting parameters by calculating the vibration velocity of surface particle decay law when Guanyin Mountain tunnel blasting. The design of the tunnel blasting will be used to avoid the impact of tunnel excavation on the around sensitive building.
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