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传统电测深法采用等比极距,测量的电测深曲线较为圆滑,其在构造勘察方面效果不错,但在地质分层和较小地质体探测方面效果较差,分辨率低,很难满足工程要求。该文介绍了一种GDS高分辨电测深法。该方法通过采用等差极距,计算出每条测深曲线的GDS值并绘制GDS曲线。经大量钻孔对比,该曲线对地层反映明显直观,对地质分层和较小地质体的分辨率有较大幅度的提高。
The traditional electric sounding method uses the same ratio of pitch, the measured electrical sounding curve is relatively smooth, which is good in structural investigation, but less effective in geological stratification and smaller geological body detection with low resolution and difficult Meet the project requirements. This article describes a GDS high resolution electric sounding method. The method calculates the GDS value of each sounding curve and draws the GDS curve by using equal pole pitch. Compared with a large number of boreholes, the curve reflects the formation directly and intuitively, and greatly improves the resolution of geological stratification and smaller geological bodies.