高密度电法在水坝岩溶空洞探测中的应用

The Application of High-Density Resistivity Method to Karst Cavity Exploration of Dam

为了查明库区坝体岩溶空洞大致走向,利用高密度电阻率法对其进行了探测,野外数据采集运用合理的观测方式,结合已知地质资料及现场踏勘记录,推断了坝区地下岩溶空洞大致走向,为后续打钻提供了有效依据及建议。结果表明,高密度电阻法具有快速、有效、准确的特点,是地下岩溶空洞探测的有效方法之一。

To find out the directions of karst cavity in the dam area,high-density resistivity method has been used in a reasonable mode at the field data acquisition.Combined with the known geological data and the reconnaissance record,the directions of karst cavity might be deduced in the dam area,which can also provide effective proof and suggestion in the later drilling work.The results show that the high-density resistivity method is an effective,fast and accurate geophysical method,and is one of the effective methods of the underground karst cavity exploration.