天水中心地震台井下综合观测示范工程介绍

INTRODUCTION OF UNDERGROUND DEEP-WELL COMPR-EHENSIVE OBSERVATION AND DEMONSTRATION PROJECT AT TIANSHUI CENTRAL SEISMIC STATION

为适应城市规划和发展的需要,合理利用国家土地资源,化解地电观测与当地经济建设用地的矛盾,以及最大限度的减少地电观测人文干扰,提高地电观测数据的信噪比,推广应用新的地震观测技术,甘肃省地震局天水中心地震台原地电阻率观测由地面观测改为地下深井综合观测。对此观测系统场地布设方式、观测原理、实施方案经验与不足等方面进行介绍,并对地表水平和井下水平观测资料进行对比分析。

In order to adapt to the needs of urban planning and development and rational utilization of national land resources, dissolve the geo-electric observation with the local economy, the contradiction of the construction land and minimize the geo-electric observation human interference, and improve the signal-to-noise ratio of geo-electric observation data, Tianshui seismic station has improved the application of new seismic observation technology, it is changed the observation of earth resistivity from surface observation to comprehensive observation of deep underground well. The paper introduces the site layout mode, observation principle, implementation experience and deficiency of the observation system, and compares and analyzes the observation data of surface level and underground level.