库尔勒铁门关钻孔体应变观测干扰异常分析  

INTERFERENCE ANALYSIS ON KORLA TIEMENGUAN BOREHOLE BODY STRAIN OBSERVATION

作　　者：徐长银[1] 杨绍富[1] 孙海军[1] 李文倩[1] 董敏[1] 

机构地区：[1]新疆维吾尔自治区地震局库尔勒地震台,新疆库尔勒841000

出　　处：《内陆地震》2017年第1期87-91,共5页Inland Earthquake

摘　　要：对库尔勒铁门关体应变2010~2015年观测资料中出现的短时波动异常因素进行了分析研究。分析了降雨、钻孔附近小水渠放水、仪器供电和数采死机等干扰因素,对气压波动、水位变化和降雨等干扰产生的不同影响机制特征进行总结。结果表明,体应变数据曲线中的短时波动主要与地下水位变化、气压的短周期扰动、钻孔四周有裂隙相关,但不能通过相关分析完全剔除。Short term fluctuation anomaly factors on korla Tiemenguan body strain observation data were studied from 2010 to 2015, in which precipitation, pouring water around borehole, instrument power supply and system crash were analyzed and their mechanism characteristics on air pressure, water table and precipitation were summarized. It turned out that short term fluctuation in body strain data values mainly related to underground water table, short term interference of air pressure and crevices around borehole. However fluctuation factors cannot be eliminated through correlation analysis.

关 键 词：体应变 干扰因素 相关分析 

分 类 号：P315.7[天文地球—地震学]