Attenuation law of blasting induced ground vibrations based on equivalent path

Hu Xuelong; Qu Shijie; Jiang Wenli; Li Hua; Yang Wei; Huang Hanbo; Hu Guangqiu

doi:10.11883/1001-1455(2017)06-0966-10

Volume 37 Issue 6

Sep. 2017

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Hu Xuelong, Qu Shijie, Jiang Wenli, Li Hua, Yang Wei, Huang Hanbo, Hu Guangqiu. Attenuation law of blasting induced ground vibrations based on equivalent path[J]. Explosion And Shock Waves, 2017, 37(6): 966-975. doi: 10.11883/1001-1455(2017)06-0966-10

Citation:

Hu Xuelong, Qu Shijie, Jiang Wenli, Li Hua, Yang Wei, Huang Hanbo, Hu Guangqiu. Attenuation law of blasting induced ground vibrations based on equivalent path[J]. Explosion And Shock Waves, 2017, 37(6): 966-975. doi: 10.11883/1001-1455(2017)06-0966-10

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Attenuation law of blasting induced ground vibrations based on equivalent path

doi: 10.11883/1001-1455(2017)06-0966-10

1.
Civil and Environment Engineering School, University of Science and Technology Beijing, Beijing 100083, China
2.
Hebei Iron and Steel Group Mining Group Company, Tangshan 063000, Hebei, China

Received Date: 2016-04-12
Rev Recd Date: 2016-08-07
Publish Date: 2017-11-25

Abstract

Abstract

In this work, in view of the widely understood idea that topography and geological conditions are usually complicated and have a critical influence on the level of blast induced ground vibrations, we analyzed the effect of topography on the path through which seismic waves travel, introduced two concepts, the equivalent path and the equivalent distance, and established an equation for determining the surface peak particle velocity, taking into account of the effects of the maximum explosive charge quantity of a single initiation period, the explosion heat of the explosive product used, the acoustic impedance of the rock, and the integrity coefficient of the rock mass. A series of field seismic monitoring tests were carried out to determine the reliability of the equation. The result show that this equation can be used to describe the relationship between the peak particle velocity and the equivalent distance, and be applied under actual field topographical and geological conditions with a much higher accuracy than that of the Sardovsky's equation, proving the reliability of the equivalent distance based equation describing the attenuation basic patterns of seismic waves and possibility for use in field practice.
- blasting,
- ground vibration,
- peak particle velocity,
- topography,
- equivalent distance

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References(13)

References

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