摘要
新丰江水库地震是世界上四个震级大于6级的水库诱发地震之一。实际资料表明,地震活动与水库蓄水有明显的相关性。为探讨库水在地震形成机制中的作用,本文试图通过新丰江水库渗流场的有限元计算,对新丰江水库蓄水初期库水渗流与地震的关系进行初步研究。本次对三个不同方向的剖面进行稳定流及非稳定流计算。计算结果表明渗流在地震诱发过程中起很重要作用,并解释了新丰江地震中出现的某些问题。
The earthquake of Ms 6.1 in the Xinfengjiang Reservoir is one offour reservoir induced earthquakes which maximum magnitude is over 6 in the world. The actual information indicates that there is obvious relativity between the seismicity and reservoir filling. In order to study the triggering mechanisms, we try to calculate the seepage field by finite element method and explore the relationship between the seepage with initial impoundment and the seismicity in the reservoir region. We also calculate stable-seepage and unstable-seepage of three sections at different directions in Xinfengjiang region. The result indicates that the seepage seems to play important role in the process of reservoir induced seismicity and we also expain some problems about induced seismicity in Xinfengjiang reservoir.
出处
《华南地震》
1989年第2期92-101,共10页
South China Journal of Seismology
