体应变观测数据稳定性影响因素  

Factors influencing the stability of the volume strain

作　　者：卢双苓 李惠玲 范晓易 王哲 缪杰 周长礼 王铮 Lu Shuangling;LI Huiling;FAN Xiaoyi;WANG Zhe;MIAO Jie;ZHOU Changli;WANG Zheng(Tai’an Referential Seismic Station, Shandong Province 271000, China;Lingyang Seismic Station, Shandog Province 276521, China;Zoucheng Seismic Station, Shandong Province 273500, China;Weifang Earthquake Angency, Shandong Province 261000, China)

机构地区：[1]泰安基准地震台,中国山东271000 [2]陵阳地震台,中国山东276521 [3]邹城地震台,中国山东273500 [4]潍坊市地震局,中国山东261000

出　　处：《地震地磁观测与研究》2018年第1期123-128,共6页Seismological and Geomagnetic Observation and Research

基　　金：2017年中国地震局"监测;预测;科研"三结合课题"钻孔类仪器稳定性影响因素研究"(项目编号:CEA-JC/3JH-16150X)

摘　　要：从钻孔体应变仪器安装和标定维护、数据曲线形态及观测精度,对比分析山东省东平、邹城和陵阳地震台体应变观测资料,结果发现:东平地震台观测质量较好,质量最佳月份精度达到0.006 5;陵阳地震台无明显干扰源,精度可达0.01。因钻孔条件不同导致观测精度受到不同程度影响,如:陵阳地震台为节理裂隙较发育的安山岩,相对东平、邹城地震台较完整的花岗岩基精度稍低。In this paper,we compare and analyze the observed data of volume strain meter at Dongping,Zoucheng and Lingyang seismic stations.Then,the operation from three aspects-installation,calibration and maintenance of the volume strain meter,the shape of data curve,observation accuracy is analyzed.Analysis shows that the observation at Zouping Seismic Station was in good quality.Its highest monthly accuracy reaches0.0065while the highest monthly accuracy of Lingyang Seismic Station reaches0.01due to the absence of disturbance.The accuracy is impacted bythe conditions of holes in different extent.For example,Lingyang Seismic Station is located in andesitic whose cleavage and fracture are well developed while Dongping and Zoucheng seismic stations are located in intact granites,so Lingyang Seismic Station’s accuracy is lower than those two.

关 键 词：体应变 数据质量 钻孔条件 稳定性 

分 类 号：P315.7[天文地球—地震学]