高密度电法和EH4法在岩溶勘探中的对比研究

Contrastive Study of High- density Electrical Method and EH4 Electromagnetic Sounding Method in karst Exploration

对于岩溶勘察,高密度电法和EH4都是行之有效的方法。本文以赤水河大桥桥梁墩台勘察为例,把高密度电法与EH4法分别运用于岩溶勘察中,将勘探结论与现场钻孔地质资料进行对比分析,结果表明高密度电法在浅层岩溶构造勘探中精确度较高,而EH4法在深层岩溶构造勘探中效果较好。

The quite effective ways For high density Elec- trical method and EH4 Electromagnetic Sounding method in karst exploration. It was an example that the Bridge pier prospecting of Chishui River Bridge in this paper, applied the high - density electrical method and EH4 Electromagnetic Sounding method in the karst exploration, Compared the survey esuhs with field drill hole results shows that the High- density electrical method is more accurate in the exploration of shallow karst structure, and the EH4 method is better in exploration of deep karst structure.