Sacks体应变地震波的观测结果分析

英文篇名：ON OBSERVATION RESULTS OF SEISMIC WAVE OF SACKS BODY STRAIN
中文刊名：大地测量与地球动力学
英文刊名：Journal of Geodesy and Geodynamics
作者：张凌空 ; 牛安福
英文作者：Zhang Lingkong and Niu Anfu(China Earthquake Networks Center ; Beijing 100045)
中文关键词：体应变地震波 ; 振幅 ; 震级 ; 震中距 ; 应变阶
英文关键词：body strain seismic wave ; amplitude ; magnitude ; epicenter distance ; strain step
出版日期：2009-10-15
机构：中国地震台网中心;
年：2009
期：05
出版单位：大地测量与地球动力学

摘要

研究宝坻台Sacks钻孔体应变仪的地震响应能力,发现它与震级及震中距有关,即体应变地震波振幅与震级和震中距的数理统计关系是随震级增大呈指数增加、随震中距增大呈幂函数衰减;分析了京津地区6台Sacks体应变仪在多次地震发生时,震时应变阶的响应特征,显示其极性(压、张)与观测点所在断层有一定关系。
The seismic response capacity of Sacks borehole body strainmeter was researched.It is discovered that the capacity is connected with eathquake magnitude or epicenter distance and spread along a line.The law is found that the amplitude will increase exponentially when earthquake magnitude increase and it will decay with power function when the epicente distance increase.The characters of the conseismic strain step of 6 Sacks body strainmeters in Beijing and Tianjin were analysed.It shows that there is a certain relation between the strain step's polarity(press and spread) with the faults which the observation stations are located on..

引文

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