关于天津地下水动态观测井网的地震监测能力  

MONITORING CAPACITY OF OBSERVATION WELL NET- WORK ON GROUNDWATER CHANGE IN RELATION TO EARTHQUAKES IN TIANJIN REGION

作　　者：郑熙铭[1] 黄振义[1] 王雅灵[1] 

机构地区：[1]天津市地震局

出　　处：《地震》1989年第4期58-65,共8页Earthquake

摘　　要：本文通过模糊数学方法、水位变化速率分析方法、加速度计算法、相关分析方法以及典型震例分析方法,全面探讨了天津井网中30余口井孔水位的映震能力及反映地壳应变的能力。结果是:Ⅰ类井占井孔总数的8.6％,Ⅱ类井占井孔总数的20％,其余均为Ⅲ类井。Ⅰ、Ⅱ类井具有较高的映震能力和反映地壳应变的能力,是今后地震监测和科研的主要依靠,Ⅲ类井则主要用于强震的宏观前兆观测。因此,拟将对不同类型的井孔采用不同的管理方法。The capacity of reflecting earthquakes and the relevant crustal strain variation on the groundwater level of more than 30 boreholes in the Tianjin well network has been explored in this paper. The rate and acceleration of groundwater changes have been calculated; and correlation analysis and fuzzy mathematics have been used in the study of some typical ex-amples of earthquakes. The results show that the wells can be classified into three types: Types I and II which make up 8.6% and 20%, respectively, are of high capacity for reflecting earthquakes and the crustal strain that may be the main base of earthquake monitoring and re-search work, while wells of .type-III may mainly be used for monitoring macroscopic pre-cursors of strong events. Therefore, wells of different types are planned to operate in dif-ferent ways.

关 键 词：地震观测 地下水动态 观测井网 

分 类 号：P315.61[天文地球—地震学]