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 reaches 0.006 5 while the highest monthly accuracy of Lingyang Seismic Station reaches 0.01 due 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.
2018,39(1): 123-128 收稿日期：2017-03-01
DOI：10.3969/j.issn.1003-3246.2018.01.020
基金项目：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）
作者简介：卢双苓(1973-),女,河北文安人,高级工程师,山东省形变学科管理、形变观测与分析。E-mail:liuru-si@163.com
参考文献：
陈小云,黄永模,薛飞,等. 福州地震台TJ-2型钻孔体应变观测资料干扰分析[J]. 地震地磁观测与研究,2015,36(1):116-119.
刘川琴,裴红云,隆爱军,等. 安徽省TJ-Ⅱ型钻孔应变观测资料干扰分析[J]. 华南地震,2016,36(3):68-74.
孟彩菊,杨世英,刘晓萍,等. 代县地震台体应变异常与山西地震带有感地震对应关系[J]. 地震地磁观测与研究,2017,38(1):96-101.
中国地震局监测预报司. 地壳形变数字观测技术[M]. 北京:地震出版社,2003.
