海宁山洞地形变台建设总结与思考  

Summary and consideration on the construction of Haining cave topographic deformation station

作　　者：钟伟 方燕勋 Zhong Wei;Fang Yanxun(Jiaxing Seismic Survey and Prevention Center,Zhejiang Jiaxing 314000,China;Hangzhou Central Station of Zhejiang Earthquake Angency,Zhejiang Hangzhou 310000,China)

机构地区：[1]嘉兴市地震测防中心,浙江嘉兴314000 [2]浙江省地震局杭州中心站,浙江杭州310000

出　　处：《地震科学进展》2024年第2期147-152,共6页Progress in Earthquake Sciences

摘　　要：海宁硖石地震台位于浙江海宁市硖石街道西山公园人防山洞内,该台在建设过程中,不但面临岩石体质量差的问题,洞室地面下挖至2 m以上深度,岩石依旧呈现多气孔且破碎的状态;还面临洞室湿度高的问题(>95%Rh)。最终在不可能采用岩石墩建台的情况下,通过浇筑大面积混凝土仪器墩,并对洞室环境进行改造,降低洞室湿度,做到保温、恒湿,改善观测环境。至今,该台已有十多年的运行时间,从目前情况看,台站观测数据平稳连续,固体潮清晰,达到了台站改造的预期效果。本文通过总结海宁硖石地震台在改造过程中取得的经验,为在一些不具备建造岩石墩的人防、民用山洞内,建设地形变观测台提供借鉴。Haining Xiashi seismic station is located in the civil air defense cave in Xishan Park,Xiashi Street,Haining City,Zhejiang Province.During the construction of the station,the first problem is the poor quality of rock mass.When the tunnel is excavated to a depth of more than 2 m below the ground,the rock is still porous and broken;The second is the problem of high chamber humidity(>95%Rh).Finally,in the case that it is impossible to use rock pier to build the platform,the large area concrete instrument pier is poured and the cavern environment is transformed to reduce the humidity of the cavern,achieve thermal insulation and constant humidity,and improve the observation environment.So far,the station has been in operation for more than ten years.From the current situation,the observation data of the station is stable and continuous,and the solid tide is clear,which has achieved the expected effect of the station transformation.This paper summarizes the experience gained in the reconstruction process of Haining Xiashi Seismic Station,and provides reference for the construction of topographic deformation observation stations in some civil air defense and civil caves without rock piers.

关 键 词：山洞 地形变 观测数据 改造 经验 

分 类 号：P315.62[天文地球—地震学]