新疆库尔勒43泉动水位异常成因调查  

DYNAMIC WATER LEVEL ANOMALY REASON SURVEY OF KORLA 43 SPRING IN XINJIANG

作　　者：徐长银[1] 李晓东[1] 闫玮[2] 杨绍富[1] 张小飞[1] 张森 董敏[1] XU Chang-yin;LI Xiao-dong;YAN Wei;YANG Shao-fu;ZHANG Xiao-fei;ZHANG Sen;DONG Min(Korla seismic station of Earthquake Agency of Xinjiang Uygur Autonomous Region,Korla 841000,Xinjiang,China;Earthqake Agency of Xinjiang Uygur Autonomous Rejion,Urumqi 830011,Xinjing,China)

机构地区：[1]新疆维吾尔自治区地震局库尔勒地震监测中心站,新疆库尔勒841000 [2]新疆维吾尔自治区地震局,新疆乌鲁木齐830011

出　　处：《内陆地震》2023年第1期114-120,共7页Inland Earthquake

摘　　要：2019年初库尔勒新43泉动水位出现较大幅度异常变化,新疆维吾尔自治区地震局与库尔勒地震监测中心站开展了一系列调查核实工作。排除了观测运行(供电、数采、传感器误差)、环境(自然环境及场地环境)、人为干扰等影响因素,同时开展野外土壤氡、二氧化碳和水化学方法分析水质并进行堵水实验和改变出水流向判断异常原因,分析动水位较大幅度异常与地震前兆异常是否具有相关性。调查分析结果表明,地下排水管老化破裂,树根、草根进入裂缝是造成泉改井大量积水并影响新43泉动水位较大幅度异常的主要原因,排除了地震前兆异常的可能。At the beginning of 2019,the dynamic water level of the Korla New 43 Spring changed significantly.Earthquake Agency of Xinjiang Uygur Autonomous Region and the Korla Earthquake Monitoring Center Station carried out a series of investigations and verification to eliminate the influence factors such as observation operation(power supply,data acquisition,sensor error),environment(natural environment and site environment),human interference,and other factors.At the same time,the field soil radon Carbon dioxide and hydrochemical methods are used to analyze the water quality and conduct water plugging experiments and change the water flow direction to determine the cause of the anomaly,and to analyze whether there is correlation between the large amplitude anomaly of dynamic water level and the earthquake precursor anomaly.The investigation and a-nalysis results show that the aging and fracture of underground drainage pipes and the entry of tree roots and grass roots into the cracks are the main reasons for causing a large amount of water accumulation in the spring wells and affecting the large amplitude anomaly of the dynamic water level of the new 43 spring,which eliminates the possibility of earthquake precursor anomalies.

关 键 词：新疆库尔勒43泉 动水位 异常成因 

分 类 号：P315.7[天文地球—地震学]