地埋式地磁观测装置的设计与实现  

Design and Test of A Buried Geomagnetic Observation Device

作　　者：张秀霞[1] 刘高川[2,3] 蒋延林 郭宇鑫 赵卫红 张骞 潘颖 高熹微 李玉 Zhang Xiuxia;Liu Gaochuan;Jiang Yanlin;Guo Yuxin;Zhao Weihong;Zhang Qian;Pan Ying;Gao Xiwei;Li Yu(Jiangsu Earthquake Agency,Nanjing 210014,China;China Earthquake Networks Center,Beijing 100045,China;Institute of Geophyscics,CEA,Beijing 100081,China;Gaoyou Seismic Station,Gaoyou 225600,Jiangsu,China)

机构地区：[1]江苏省地震局,南京210014 [2]中国地震台网中心,北京100045 [3]中国地震局地球物理研究所,北京100081 [4]江苏省高邮地震台,江苏高邮225600

出　　处：《中国地震》2022年第1期131-141,共11页Earthquake Research in China

基　　金：中国地震局地震科技星火计划项目(XH20021)资助。

摘　　要：地埋式地磁观测方式具有占地面积小、无地面建筑物、施工简单、不受农田保护限制等特点,与传统的地磁台站观测方式相比,避免了征地和磁房建设的困难。将地磁观测场地建在观测环境优良的保护区内,有利于推广建造和开展大范围的地磁观测。本文针对现有地埋式地磁观测装置仍存在的保温不足、防水处理不当、稳定性低和使用周期短的问题,提出了一种新的装配式地埋式设计方案,从观测装置的材料使用、结构设计、建造布局、仓室保温等方面分别进行了理论计算和观测实验验证。计算和实验结果表明,该装置实际最大日温差小于0.2℃,理论年温差小于8℃,具有施工简单、稳定性高、防水性能好和保温良好等特点。Compared with the traditional geomagnetic observation method,the buried geomagnetic observation method has the advantage of small area,no surface buildings,simple construction and no restriction of farmland protection.It effectively avoids the difficulties of land acquisition and magnetic house construction,so it can be built in the protected area with excellent observation environment,which is conducive to the promotion of construction and the development of a large range of geomagnetic observation.Aiming at the problems existing in the current buried geomagnetic observation devices,a new prefabricated buried design scheme is proposed in this paper.The theoretical calculation and experimental verification of the observation device,such as insufficient heat preservation,improper waterproof treatment,low stability and short service period,are carried out from the aspects of material use,structural design,construction layout and warehouse insulation.The results show that the actual maximum daily temperature difference of the device is less than 0.2℃,and the theoretical annual temperature difference is less than 8℃,which is of simple construction,high stability,good waterproof performance and heat preservation.

关 键 词：观测装置 地埋式 地磁台站 

分 类 号：P315[天文地球—地震学]