Effect of Explosive Sources on the Elastic Wave Field of Explosions in Soils

  • Chun Hua Bai Beijing Institute of Technology, Beijing
  • Jian Chen China Shipbuilding Information Center, Beijing
  • Bo Zhang East China University of Science and Technology, Shanghai
  • Zhong Qi Wang Beijing Institute of Technology, Beijing
DOI: https://doi.org/10.14429/dsj.63.2770
Keywords: Seismic exploration, seismic-wave energy, explosive source, energy output, explosions in soils

Abstract

A seismic wave is essentially an elastic wave, which propagates in the soil medium, with the strength of initial elastic wave being created by an explosion source that has a significant effect on seismic wave energy. In order to explore the explosive energy effect on output characteristics of the elastic wave field, four explosives with different work capacity (i.e., TNT, 8701, composition B and THL) were used to study the effects of elastic wave pressure and rise time of stress wave to the peak value of explosions in soils. All the experimental data was measured under the same geological conditions using a self-designed pressure measuring system. This study was based on the analysis of the initial pressure of elastic waves from the energy output characteristics of the explosives. The results show that this system is feasible for underground pressure tests, and the addition of aluminum powder increases the pressure of elastic waves and energy release of explosions in soils. The explosive used as a seismic energy source in petroleum and gas exploration should have properties of high explosion heat and low volume of explosion gas products.

Defence Science Journal, 2013, 63(4), pp.376-380, DOI:http://dx.doi.org/10.14429/dsj.63.2770

Author Biographies

Chun Hua Bai, Beijing Institute of Technology, Beijing

Dr Chun-Hua Bai obtained his PhD from Beijing Institute of Technology (BIT), China in 1988. Presently, he is working as a professor at State key Laboratory of Explosion Science and Technology, BIT and his research areas are explosion dynamics and fuel air explosives.

Jian Chen, China Shipbuilding Information Center, Beijing

Dr Jian Chen obtained his PhD from Beijing Institute of Technology, China, in 2013. Presently, he is working as an Engineer at China Shipbuilding Information Center, and his research areas are : Safety assessment and explosion in soils.

Bo Zhang, East China University of Science and Technology, Shanghai

Dr Bo Zhang obtained his PhD from Beijing Institute of Technology, China, in 2013. Presently, he is working as an Assistant Professor at East China University of Science and Technology, and his research areas are : Explosion dynamics, deflagration and detonation.

Published
2013-07-22
How to Cite
Bai, C., Chen, J., Zhang, B., & Wang, Z. (2013). Effect of Explosive Sources on the Elastic Wave Field of Explosions in Soils. Defence Science Journal, 63(4), 376-380. https://doi.org/10.14429/dsj.63.2770
Issue
Vol 63 No 4
Section
Armaments & Explosives
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