摘要
本文根据一个非线性动力学模型,应用耗散结构理论和Lyapunov稳定性理论,讨论了震前地壳在与外界同时存在物质和能量交换时的动力学行为和超熵判据,并分析了拉仲试验过程中的超熵变化。对100km^3体积的弹性体,用地壳的实际参数进行了形变与震级的对应关系计算。最后,分析和讨论了青海省门源6.4级地震前地壳的超熵变化过程。
It is well known that earthquake is energy raleasing and accumulating process in the earth, and elastic energy is main parts of them. In this paper, according to the dissipative structure theory and Lyapunov's stability theory, the extra-entropy production criterion before earthquake,which indicate the behivour in the earth's crust, is given. On the other hand, the extra-entropy production criterion in tensile test is investigated and the relationship between magnitude and strain is calculated. Finally, the extra-entropy production process before Menyuan 6.4 Ms earthquake in Qinhai province in 1986 is discussed.
出处
《地壳形变与地震》
CSCD
1992年第4期12-18,共7页
Crustal Deformation and Earthquake
关键词
地壳
动力学
形变
地震
震前
dissipative structure theory, Lyapunov's stability theory, entropy production, extraentropy production, elastic energy
