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从电性各向异性的欧姆定律出发,推导了直流电法层状方位各向异性介质中的电位分布、边界条件及视电阻率计算公式.以四极对称装置系统为例,对具有相同各向异性系数的4层模型采用核函数递推法作了理论数值模拟,得到了不同方向的电阻率测深曲线及其等值线形态.结果表明理论公式是正确的,测深曲线既反映了分层介质的电阻率差异,又反映了各层中电阻率的各向异性特征.
Based on the Ohm’s law of electrical anisotropy, the potential distribution, boundary conditions and apparent resistivity formula in the layered azimuthally anisotropic media by direct current method are deduced. Taking the four-pole symmetric device system as an example, The 4-layer model of heterosexual coefficient is numerically simulated by kernel function recursion method, and the resistivity sounding curves and their contour shapes in different directions are obtained. The results show that the theoretical formula is correct, The difference in resistivity of the layers of medium also reflects the anisotropy of the resistivity in each layer.