震中区地面的位移变化

• 作 者: М.Х.巴基也夫 Л.А.哈米多夫
• 机 构: 乌兹别克斯坦共和国科学院地震研究所,乌兹别克斯坦共和国科学院地震研究所 塔什干700128,塔什干700128
• 出 处: 内陆地震
• 发表日期: 2001年03期
• 关键词: 震中区 地震构造 面膨胀 重复水准测量 实验场 实际观测资料 地球动力学 均匀介质 位移变化 应力集中区

通过对塔什干地球动力学实验场重复水准测量资料的分析和对应力集中区应力应变量的计算 ,表明震中区为应力应变集中部位 ,其地面膨胀显著 ;定量计算和实际观测资料还表明 ,均匀介质中的局部非均匀区是能量集中部位 ,这也许是震中区以外出现异常点的原因。以东乌兹别克斯坦地震构造 1 959～ 1 980年的 4个地震为例 ,并分析地下水氡含量的变化 ,认为在同一地震构造中 ,能量可以传递 ,一处地震的发生 ,可以促进其他部位能量积累的加速而引发另一次地震

Through the analysis of repeated leveling data of Tashkent geodynamical experimental field and the calculation of stress and strain of the stress concentration area, it is shown that the epicenter area is the stress-strain concentrated site and the surface expansion is significant. The quantitative calculation and practical observations also show that homogeneous medium The local nonuniform zone is the center of energy concentration, which may be the reason for the abnormal point outside the epicenter area. Taking the earthquake of East Uzbekistan from 1995 to 1980 as an example and analyzing the variation of radon in the groundwater, it is considered that in the same seismic structure energy can be transmitted and the occurrence of an earthquake can promote energy accumulation in other parts The acceleration caused another earthquake