炸药震源爆炸机制及激发条件的研究

The research on the explosive mechanism and excitation condition of dynamite source

1. 中国地质大学, 武汉 430074;2. 中原油田地调处, 濮阳 457001

Department of Applied Geophysics, China University of Geosciences, Wuhan 430074

目前对地震勘探中炸药震源激发问题的研究还很肤浅。本文从弹性动力学出发, 结合有关的爆炸原理, 研究了球状集中式药包和细长药柱的爆炸机制, 并作了实地试验工作, 说明了理论对激发条件的选取有一定的指导意义。在理论研究结合实际试验工作的基础上, 提出了选取激发条件的方法, 并指出长药柱震源有很好的激发效果, 建议加以推广使用。

At present, the study of the dynamite source excitation in seismic prospecting is still verysuperficial. In the paper, starting with the elastodynamics and combining with relevant explosiveprinciples, we study the explosive mechanism of spherica1 aggregate charge and elongated charge-And we made the field tests, which shows that the theory has p1ayed a certain role in the selectionof the excitation condition. On the basis of the theoretical research combined with the actual test,we put forward the method to select the excitation condition.