土中１ｍ深以下的温度量测法对探测运河、废渣场等元渗流是一种很好的手段，因为地表微气候的不规则影响在此深度下已减弱。若土的温度不同于土中渗水温度时，我们可测出渗流场中明显的温度异常。对探测渗流现象来说，水温是一种良好的天然示踪剂。本文介绍一种可测量地表下深达１０ｍ的温度量测新技术。应用这种新方法，用较经济的费用，便可获得土中的温度剖面图和综合图。此方法已成功地应用于确定运河堤坝的渗漏区域。１９９１１１９９２年，在超过４０ｋｍ堤坝探测中，已探出了几个漏水点。 The temperature measurement below 1 m deep in the soil is a good means of detecting elemental percolation, such as canals and waste dumps, because the irregular effects of the surface microclimate have weakened at this depth. If the soil temperature is different from the seepage water temperature in the soil, we can detect the apparent temperature anomaly in the seepage field. Water temperature is a good natural tracer for detecting seepage phenomena. This article describes a measurable subsurface temperature of up to 10m temperature measurement of new technologies. Using this new method, the temperature profile and the integrated map in the soil can be obtained at a more economical cost. This method has been successfully applied to determine the seepage area of ​​canal dykes. 199111992 years, in more than 40km embankment detection, has leaked a few leaks.