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本文是探讨三层倾斜层的直流电测深问题。文中通过三层倾斜层的数学模型,就各种参数(第一、二倾斜层的倾角及各倾斜层的电阻率值变化,测线平行、正交、斜交于倾斜层走向)进行了大量的电测深正演计算,并对正演计算结果加以探讨。计算结果表明,其值与三层水平层测深结果有较大的差别,如曲线的尾支渐近值差异,垂直倾斜层走向布极的测深曲线产生畸变,以及在某些地电参数下,测深曲线无法正确地反映地下的地电断面等。因此,在野外实际工作中,对于利用三层水平层的理论计算结果来解释三层倾斜层时,必须注意其解释误差。
This article is to explore the three-story inclined layer DC sounding problems. In this paper, a large number of parameters (inclination of the first and second inclined layers and the resistivity of each inclined layer, parallel, orthogonal and oblique directions of the inclined layers) Electric sounding forward calculation, and forward calculation results to be discussed. The calculated results show that there is a great difference between the measured results and the sounding results of the three horizontal slices. For example, the asymptotic difference of the tail branch of the curve, the distortion of the vertical sounding curve of the vertical inclined layer, Under the sounding curve can not correctly reflect the underground power section and so on. Therefore, in practical work in the field, it is necessary to pay attention to the interpretation error when using the theoretical calculation results of three horizontal layers to explain the three-layer inclined layer.