强震孕育与发生的实验研究

地震地质 ›› 1995, Vol. 17 ›› Issue (4): 383-389.

强震孕育与发生的实验研究

王春华, 廖素琼

国家地震局地质研究所, 北京 1000029

收稿日期:1994-05-31 修回日期:1995-05-31 出版日期:1995-12-06 发布日期:2009-11-25
基金资助:
地震科学联合基金资助(92346)

EXPEKIMENTAL STUDY ON THE PREPARATION AND OCCURRENCE OF STRONG EARTHQUAKE

Wang Chunhua, Liao Suqiong

Institute of Geology, SSB, Beijing 100029

Received:1994-05-31 Revised:1995-05-31 Online:1995-12-06 Published:2009-11-25

摘要/Abstract

摘要： 应用激光全息光弹性实验研究将我国7个强震的孕育构造划分为枢纽型、交汇型和阶区型3类,并定量分析了它们在现代构造应力场作用下的形变场及主应力、剪应力的分布特征。研究结果提出了这3种孕震构造的动力学过程、地震重复发生的力学机制以及影响地震震级的构造因素。

关键词: 地震孕育, 光弹性实验, 应力-应变关系

Abstract: In this paper,the tectonic features for preparation of strong earthquakes in China are distin-guished into three types:pivotal,intersection and step area types after our laser holographic pho-to elasticity experiments.The characteristics of distribution of strain field and principal stress,shear stress under the effect of recent tectonic stress field are quantitatively analysed.The studyresult suggests a dynamic process for preparation of earthquake,mechanism of earthquake rec-currence and tectonic factors affecting earthquake magnitute for these three types of tectonic features.

Key words: Earthquake preparation, Photoelastic experiment, stress-strain relation

王春华, 廖素琼. 强震孕育与发生的实验研究[J]. 地震地质, 1995, 17(4): 383-389.

Wang Chunhua, Liao Suqiong. EXPEKIMENTAL STUDY ON THE PREPARATION AND OCCURRENCE OF STRONG EARTHQUAKE[J]. SEISMOLOGY AND GEOLOGY, 1995, 17(4): 383-389.