高密度电法不同装置的勘探效果对比

Comparison of exploration effect for different devices of high-density electrical prospecting.

高密度电法由于自身的优势而在工程地质勘察等领域得到越来越广泛的应用。其工作装置有很多种,在实践中应根据各种跑极方式的特点来选取最合适的装置模式。通过野外实验研究,温纳装置的垂向分辨率相对较高,施伦贝尔1装置对地质体的水平分辨率很高,温施1装置在测深方面具有明显优势。为了保证物探数据的准确性,野外数据的采集最好采用两种或两种以上的装置,以便于资料的对比和室内解释。

High-density electrical prospecting has been more and more widely used in the region of engineering geological exploration since own superiority. There are many varieties of work devices, and more appropriate device pattern should be selected according to different electrode arrangement in practice. Through experimental study in the field, the Wenner device is characters of higher vertical resolution; Schlumbeger-1 device is characters of higher lateral resolution of geologic body; Wenner-Schlumberger-1 device has clear superiority in sounding. In order to ensure the accuracy of geophysical prospecting data, it is best to use two or more than two devices for acquisition of field data, ensuring the data correlation and indoor interpretation.