马陵山和相公庄台钻孔体应变观测质量影响因素分析  

Factors Affecting the Observation Quality of Borehole Volume Strain Meters at the Malingshan and Xianggongzhuang Stations,Shandong Province

作　　者：赵小贺[1] 公续升 闫万晓 范晓易 宁斌[2] 卢双苓[3] ZHAO Xiaohe;GONG Xusheng;YAN Wanxiao;FAN Xiaoyi;NING Bin;LU Shuangling(Malingshan Seismic Station,Earthquake Agency of Shandong Province,Tancheng 276114,Shandong,China;Xianggongzhuang Seismic Station,Earthquake Agency of Shandong Province,Xianggongzhuang 276025,Shandong,China;Taian Seismic Station,Earthquake Agency of Shandong Province,Taian 271000,Shandong,China)

机构地区：[1]山东省地震局郯城马陵山地震台,山东郯城276114 [2]山东省地震局相公庄地震台,山东临沂276025 [3]山东省地震局泰安基准地震台,山东泰安271000

出　　处：《地震工程学报》2018年第A01期95-100,152,共7页China Earthquake Engineering Journal

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"(CEA-JC/3JH-16150X)

摘　　要：对山东省内同一条断裂带内,气象条件相同、地理位置相近的两个台站体应变仪进行分析,探讨影响体应变观测质量的因素。结果表明:(1)两个台的数据完全符合规范中所要求的M2波潮汐因子相对误差δα/α≤0.05的精度指标;2016年月平均精度:相公庄台为0.015 1,马陵山台为0.032 1,相公庄高于马陵山。(2)两个台站受降雨、水位和气压影响明显,体应变和气压相关程度达到0.85以上。(3)两个台站均位于断裂带或其附近,除仪器及其他干扰因素外,井孔条件是造成马陵山比相公庄台精度低的主要因素。The factors affecting the observation quality of the borehole volume strain meters at two stations along the same fault zone in Shandong Province were analyzed and discussed.The two stations are under the same meteorological conditions and are at similar geographical positions.Results revealed the following information.(1)The data of two stations conformed completely to the accuracy index required in the specifications.The relative error of the M2 wave tidal factor was δα/α≤0.05.The average monthly accuracy of Xianggongzhuang Station in 2016 was 0.015 1 and was higher than that of Malingshan Station,which had a monthly average accuracy of 0.032 1.(2)The two stations were affected by rainfall,water level,and air pressure,and the correlation degree between volume strain and air pressure exceeded 0.85.(3)Both stations are located at or near the fault zone.In addition to instruments and other interference factors,borehole condition is the major factor that accounted for the lower precision of Malingshan Station than that of Xianggongzhuang Station.

关 键 词：体应变 观测质量 影响因素 精度 

分 类 号：P315.727[天文地球—地震学]