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堤坝管涌水渗漏改变渗径周围岩土体的原始温度场分布,由此将管涌通道虚拟为一个有限长线热源,引入热传导理论中的热源函数描述这种温度响应,通过虚拟热源法与映像法建立管涌水传热模型。由于渗漏水流速、水温决定了线热源的发热率,据此可以依据实测温度数据、地层介质热物性参数以及测量点空间位置,确定出发热率并反推求出渗漏流速。通过室内试验,在不同工况下模拟渗漏水对岩土介质温度场的影响,模型计算值与试验设定值吻合较好。
Dyke pipe water infiltration changes the original temperature distribution of rock and soil around the percolation path, so that the pipe passage is virtualized as a finite long-term heat source. The heat source function in heat conduction theory is introduced to describe the temperature response. By virtual heat source method and mapping method Establishing pipe gushing water heat transfer model. Due to the leakage flow rate and water temperature, the heat rate of the linear heat source determines the heat rate of the heat source. Based on the measured temperature data, the thermal physical property parameters of the formation medium and the spatial position of the measurement point, the heat rate can be determined and the leakage rate can be deduced. Through laboratory tests, the effect of seepage water on the temperature field of geomaterials was simulated under different operating conditions. The calculated values agree well with the experimental values.