【摘要】 以天津高村井和张道口-1井为例,对水温观测受同井孔水位校测影响的特征及机理进行研究。结果表明:(1)测钟撞击水面方式校测水位会对部分同井孔观测的水温产生影响,不同深度水温受影响程度各异,但均表现为数据下降;(2)水温对水位校测的响应时间先后不同,有时为即时,有时则有明显的滞后,并且恢复期差异也较大;(3)水温受同井孔水位校测影响机理为测钟与水面撞击,水体发生震荡并引起水温探头扰动,使井孔内水体上下交替,且水温探头附近水体为正梯度,从而导致水温下降变化。建议在实践中对水温受水位校测影响的井孔以特例对待,若水位仪探头漂移较小且相对稳定,可减少水位校测的频度。更多还原

【Abstract】 Gaocun well and Zhangdaokou-1 well as examples,characteristics and mechanism of water table in wells with calibration effect on water temperature observation were studied,results showed that striking water with measuring clock to calibrate water table would have significant influence on water temperature observation of part of the same well,different depth of the same well water temperature observation data were affected by different degrees,but all of them showed a decline in the data;( 2) Water temperature had different response to water level calibration,some for instant,others were obvious late,and recovery period also showed a lot of differences;( 3) How the same well water level calibration affect water temperature and its mechanism should be understood as that measuring clock struck water to cause shocking and water temperature probe disturbance,which altered the position of borehole water. Meanwhile water around water temperature probe showed as gradient which led to water temperature decrease. Suggestions were put forward to take water table calibration effect on water temperature as a single case. If water table probe drift was small and relatively stable,frequency of water level calibration can be reduced.更多还原