高密度电法在土坝浸润线探测中的应用

High-density Resistivity Method Used in Detection of Earth Dam Saturation Line

常规的堤坝浸润线观测方法受限于时空分布的局限性,仪器的损坏,以及未安装仪器等因素限制了其应用基于土体含水率和电阻率具有相关关系的基础,尝试应用高密度电法探测坝体浸润线,该方法具有无需钻孔、机动灵活、工程量小、测点多、分辨率高等优点.结合实际工程开展了利用高密度电法探测坝体浸润线的试验,并与测压管数据进行对比验证,结果表明,该方法能够快速准确地对坝体浸润线实施观测.

Conventional dam saturation line inspection methods are limited by the limitations of spatial and temporal distribution, damage to the instruments, and instruments are not installed, so the application is re- stricted. In view of the fact that soil moisture content is proportional to its electrical resistivity, this article tried to apply high-density resistivity method to detect dam saturation line, this method has no need to drill, and it has flexibility, a small amount of engineering and high resolution. The actual works based on high-density re- sistivity method for dam saturation line test, and compare with the method of Osmometer, the results show that this method can quickly and accurately observed the darn saturation line.