地下爆炸地震强度与当量的比例关系

Study on seismic coupling of underground explosion in rock

摘要: 为了研究爆炸地震耦合强度与爆炸当量的关系，针对某一硬岩介质，在相同爆炸深度条件下，进行了系列不同爆炸当量的小当量化学爆炸试验，爆炸源附近的介质特性相同。应用近场地表记录的其中两次爆炸当量相差一倍的试验数据，比较研究了他们的爆炸震源函数折合速度势振幅谱比，得到他们的地震耦合强度地震矩M0比值近似等于2，与他们的爆炸当量比值相等，因此得到同爆炸深度的地下爆炸地震强度与爆炸当量成正比的结论。
- 爆炸力学 /
- 地震耦合 /
- 折合速度势 /
- 地下爆炸
Abstract: Series of small yield chemical explosion tests, which media were uniform near the explotion sources, were performed in a certain hard rock to investigate the relationship between explosion seismic coupling intensity and yield in the same buried depth. The magnitude spectra of explosion seismic function reduced velocity potential for two chemical explosions which yield ratio was two, were compared with the ground motion data to obtain that the seismic coupling ratio is approximately equal to two. Therefore, it was concluded that underground explosion seismic intensity be directly proportinal to yield in the same explosion depth.
- mechanics of explosion /
- seismic coupling /
- reduced velocity potential /
- underground explosion