地震前兆场物理模式及前兆分布特征与机制研究进展  

DEVELOPMENT OF RESEARCH ON THE PHYSICAL MODEL OF EARTHQUAKE PRECURSOR FIELD AND THE MECHANISM OF PRECURSORS' TIME-SPACE DISTRIBUTION

作　　者：梅世蓉[1] 

机构地区：[1]国家地震局分析预报中心,中国北京100036

出　　处：《地震》1995年第S1期2-22,共21页Earthquake

摘　　要：概述了“地震前兆场物理模式建立与前兆时空分布机制”项目的主要研究进展,包括6个方面:(1)从深部构造、力学分析、数值模拟、实验研究等方面系统考察坚固体孕震模式的证据;(2)强震孕育过程和前兆机理数值模拟;(3)短临阶段的震源过程数值模拟;(4)根据岩石膨胀—热物质侵入模式,对重力、形变、电阻率、地下水前兆给出了统一解释;(5)岩石刚度对岩体破裂和粘滑行为具有重要影响的讨论及地震与响应比关系多样性分析;(6)根据图象动力学方法,揭示了近源区与震源区形变场的差异及地壳形变场图象动力参量的变化。This paper outlines the development of the project entitled ' Establishment of the Physical Model of Earthquake Precursor Field and Study on the Mechanism of Precursors' Time-space Distribution.' It contains six parts: 1. Systematic investigation of evidences for the strong body earthquake-generating model from the deep-seated structures, mechanical analysis, numerical simulation and experimental research; 2. Numerical simulation of the earthquake-generating process and precursory mechanism of strong earthquakes; 3. Numerical simulation of seismogenic process in the short-term and impending period; 4. United interpretation of anomalies of deformation field, gravity field, apparent earth electrical resistivity and underground water level according to the Dilatancy-Hot Material model; 5. Discussion of important influences of the stiffness of rock samples on rock failure and stick-slip and analysis of multiplicity of relations between earthquake and response ratio; 6. Revealment of differences of deformation field of earthquake source region and its vicinity, and variations of pattern dynamic parameters of crustal deformation field by application of pattern dynamic method.

关 键 词：前兆模式 坚固体模式 地震层析成象 深部构造 岩石非弹性膨胀 

分 类 号：P315.7[天文地球—地震学]