昌黎井水温潮汐形成机理分析

Analysis on the mechanism of formation characteristics of water temperature tide in Changli well

昌黎井水温具有潮汐变化特征,并且与该井水位的潮汐动态同步。该文对比分析了井水温潮汐特征产生的可能原因。认为井水温潮汐现象在井管内任何深度不一定都有反映,能够显示温度潮汐周期性变化大体有两种模式:一是井管水体具有足够大的温度梯度,水体上下周期性运动时,温度探头可以捕捉到水体的温度变化;二是井-含水层系统地下水交换量的多寡引起水温同步的周期性变化。研究结果表明,昌黎井水温潮汐现象是次生效应,水温潮汐动态与井孔管路特殊结构有一定关系。

The temperature of underground water shows the tide characteristics. The tide dynamics and the underground water level are synchronized in Changli well. The authors do not think that the phenomenon of such a water temperature variation should be reflection at any depth in the well. There are two modes, first the temperature gradient is big enough, and the second, the quantity of ground water in exchange with well-aquifer systems causes the temperature change. The reason of tide characteristics of water temperature change is analyzed. The results show that tide characteristics of water temperature are secondary effect, and it has a certain relation with special configuration of the pipeline in Changli well.