基于高密度电法的高阻侵入体的探测研究

Detection Study on High-resistance Invasive Media Based on High-density Electrical Method

高密度电法具有成本低、效率高、精度高等优点,因此被广泛应用于水利水电工程、环境地质工程等诸多领域。该文介绍了利用高密度电法对高阻侵入岩体异常进行研究和解释,应用高密度电法数值模拟软件RES2DMOD,建立不同侵入角度的高阻侵入体模型并对其进行正演,然后利用软件RES2DINV进行反演。最后,结合天荒坪地区高密度电法探测实例,进一步研究和阐述了高阻侵入岩体以及围岩之间电性异常场的分布特征。该文对高阻侵入岩体的高密度电法的精确解释起到了一定的指导作用。

The high-density electrical method has some advantages such as low cost,high efficiency and high accuracy,so as it is widely applied in many fields,such as hydraulic and hydropower engineering,environmental geological engineering and so on. The abnormalities of high-resistance invasive media is studied and interpreted by using high-density electrical method in this paper. The high-resistance invasion models with different invasion angles are established,and the forward performance is made by using the numerical simulation software RES2 DMOD. Then the software RES2 DINV is used to inversion. Finally,combined with the detection example of Tianhuangping area,the distribution characteristics of electrical anomaly field between high-resistivity invasive rocks and surrounding rocks are further studied and expounded. This paper has a guiding effect for the accurate interpretation of the high-density electrical method in high-resistance invasive rock media.