文献类型：期刊文献

英文题名：Effect of Explosive Sources on the Elastic Wave Field of Explosions in Soils

作者：Bai, Chun-Hua[1];Chen, Jian[2];Zhang, Bo[3];Wang, Zhong-Qi[1]

机构：[1]Beijing Inst Technol, Beijing 100081, Peoples R China;[2]China Shipbldg Informat Ctr, Beijing 100192, Peoples R China;[3]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

年份：2013

卷号：63

期号：4

起止页码：376

外文期刊名：DEFENCE SCIENCE JOURNAL

收录：;EI(收录号：20133916771405);WOS:【SCI-EXPANDED(收录号:WOS:000327914500006)】；

基金：The first author would like to thank Prof Qingming Liu, Beijing Institute of Technology, for his help in experiments of pressure test of this work. This work is supported by National Major Scientific and Technological Special Project during the Twelfth Five-year Plan Period, China (Grant No.: 2011ZX05006-002), Shanghai Postdoctoral Sustentation Fund, China (Grant No.:13R21411800), and Postdoctoral Science Foundation of China (Grant No.: 2012M520852).

语种：英文

外文关键词：Seismic exploration; seismic-wave energy; explosive source; energy output; explosions in soils

摘要：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.