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该文描述了嘉山地震台TJ—Ⅱ体应变仪钻孔的地质构造特点与钻孔岩芯物理特性,介绍了TJ—II体应变仪在嘉山台运行情况。通过对嘉山地震台TJ—II型体应变仪近年来观测资料的分析,针对台站观测工作中遇到的漂移、突跳、阶跃、开阀、干扰等诸多实际问题,对各种现象作了较为系统的归纳总结。正确理解这些丰富的信息,对于今后工作中准确识别震前异常有着重要意义。
This paper describes the geological structure of borehole of TJ-Ⅱ body strain gauge in JiaShan Seismic Station and physical characteristics of borehole core. The operation of TJ-II body strain gauge in JiaShanTai is introduced. Through the analysis of observation data of TJ-II body strain gauge in recent years in Jiashan Seismic Station, aiming at many practical problems such as drift, sudden jump, step, valve opening and disturbance encountered during the observation of station, A more systematic summary. Correct understanding of these rich information is of great significance to accurately identify pre-earthquake anomalies in future work.