Abstract:Leakage of groundwater will influence strata normal temperature distribution and generate the abnormality on temperature curve. The piping leakage passage can be regarded as a continuous line heat resource. Through studying the influence of piping water on strata temperature, a continuous line-heat-resource model is proposed by using the heat resource theory. Verified by an example, the model can be used to get the leakage velocity of piping passage and estimate the permeability of strata.