青海地区钻孔应变干扰及异常分析  

ANALYSIS ON THE INTERFERENCE AND ANOMALY OF BOREHOLE STRAIN IN QINGHAI REGION

作　　者：文勇[1] 赵燕杰[1] 孟鑫[1] 高慧慧[1] 

机构地区：[1]青海省地震局德令哈地震台,德令哈817000

出　　处：《高原地震》2012年第3期30-35,共6页Plateau Earthquake Research

基　　金：中国地震局"三结合"课题(2011)资助

摘　　要：简要叙述了青海地区6个钻孔应变台站的观测概况,通过分析,认为主要存在观测技术系统和观测环境变化这两类干扰。在排除各类干扰后,发现只有乐都台和湟源台在汶川地震前出现了前兆异常。It is introduced briefly the six borehole strain stations in Qinghai province, and the results show that there exists two kinds of interferences which are observation systems and observation environmental changes. After cleaning the interferences, the data recorded by Ledu and Huangyuan seismic stations appeared precur- sory anomalies before the Wenchuan earthquake.

关 键 词：钻孔应变 干扰因素 异常分析:青海地区 

分 类 号：P315.727[天文地球—地震学]