祁县井水温固体潮现象及其机理分析  

The Mechanism of Water Temperature Behaviour in Qixian Well

作　　者：穆慧敏[1,3] 何案华 吕芳 胡玉良[1,3] 李颖 魏越超[1,3] MU Huimin;HE Anhua;LV Fang;HU Yuliang;LI Ying;WEI Yuechao(Shanxi Earthquake Agency,69 Jinci Road,Taiyuan 030021,Shanxi,China;National Institute of Natural Hazards,Beijing 100085,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan 030025,Shanxi,China)

机构地区：[1]山西省地震局,山西太原030021 [2]国家自然灾害防治研究院,北京100085 [3]太原大陆裂谷动力学野外科学观测研究站,山西太原030025

出　　处：《山西师范大学学报（自然科学版）》2023年第3期104-109,共6页Journal of Shanxi Normal University(Natural Science Edition)

摘　　要：通过对山西祁县观测井水温与水位年变与多年动态曲线分析得出,水位的大幅度变化(6 m~14 m)未对水温构成较大影响;从水温潮汐与水位潮汐效应对比结果来看,水温潮汐的相位超前水位潮汐110分钟左右,两者影响关系为7.3℃/hm,明显高于地温梯度背景值.通过祁县井几次典型地震的同震响应,结合相关研究成果,水温相位超前只是一种“假象”:由于多个层位含水层、且含水层间具有不相同的特征参数,从而导致不同观测部位水温与水位的潮汐过程不一致,造成了水温相位超前于水位的假象.Based on the annual change and multi-year curve of water temperature and water level in qixian observation well of Shanxi Province,the significant change of water level(7 m~12 m)didn't have any impact on water temperature,and from the tidal effect of water temperature and water level,water temperature tide ad-vanced water level tide about 110 minutes,the influence relationship between the two was 7.3℃/hm,which was obviously higher than the background value of geothermal gradient.Through the co-seismic response of several typical earthquakes in Qixian well and the existing research results of the author,the phase advance of water tem-perature was just a kind of“pseudophase”:due to the multi-horizon aquifer and the different characteristic pa-rameters of the aquifer,the tidal process of the observed water temperature was not ahead of the water level,but neutralizated by different temperature of the water because of the tidal process had not yet been completed,and early ended the tidal process,resulting in the pseudophase that the phase of water temperature ahead of water level.

关 键 词：祁县井 水温 同震响应 相位超前 

分 类 号：P315[天文地球—地震学]