摘要
赵各庄井由浅层冷水和深部热水混合,周边村庄和农用抽水井对其有干扰。受地下水开采影响,2002—2011年6月,水位、水温呈下降趋势,且3月中下旬出现水位下降,水温上升,可用冷热水混合机理进行解释,即浅层冷水被开采,井水位下降,井区流入井筒内的冷水比例变小,水温上升。该井还受降雨的影响,每年6月中下旬,水位上升,水温变化多样,推测与降雨强度及其分布有关。2002—2004,2008—2010及2014年,降雨量少,水位上升小,水温变化平稳;2005—2007及2011—2013年,降雨量大且分布集中,水位快速、大幅回升,水温快速下降后缓升至平稳。对水温动态的分析中应重视对干扰因素的研究,正确识别干扰,积累相似干扰,总结受干扰影响的形态特征,为排除干扰、提取正常动态规律提供了新的方法。
Zhaogezhuang Well water system is a mixture of the shallow cold water and the deep thermal water, which is disturbed by the wells of surrounding villages and agricultural pumpings. Affected by groundwater exploitation, the water level and water temperature showed a downward trend from 2002 to Jun. 2011, and the water level dropped in the late March and the water temperature increased. It can be explained by the mixing mechanism of cold and thermal water, that is, when the shallow cold water was exploited, the water level of the well was decreased, so the cold water flowing into the wellbore was reduced, and the water temperature raised. The water level rose and the water temperature changed in the late June of each year, which was related to rainfall intensity and its distribution. The water level of the well rose slowly and the water temperature changed smoothly in the year of 2002 to 2004, 2008 to 2010 and 2014, with less rainfall. The water level rose rapidly and the water temperature rose sharply in the year of 2005 to 2007 and 2011 to 2013 with large rainfall and concentrated distribution. The study of interference factors should be taken into account in the analysis of the normal dynamic of water temperature. In order to eliminate interference and provide new methods for extracting normal dynamic law, the interference needs to be correctly identified, and the similar interference needs to be accumulated, and the morphological characteristics of interference effects need to be summarized.
出处
《防灾减灾学报》
2017年第1期63-69,共7页
Journal of Disaster Prevention And Reduction
基金
2011年度震情跟踪青年课题(2011020301)
2016年度北京市地震局任务性科技专项资助(QN05)
关键词
水温
井水位
赵各庄井
降雨
干扰识别
water temperature
water level
Zhaogezhuang Well, rainfall
interference recognition
