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电阻率联合剖面法常用电阻率λ比值曲线来确定低阻体的位置,使用联合三极电阻率测深亦可计算λ比值,并可画出λ比值的拟断面图。对几种常见二维模型用有限元方法进行数值摸拟计算,得到剖面上数个测点的ρAs,ρBs联合三极电阻率测深,然后计算λ比值,结果表明,电阻率测深中λ比值拟断面图在横向和纵向上均有很好的分辨率。
Resistivity combined with cross-section method commonly used resistivity λ ratio curve to determine the location of low-resistivity body, the use of joint terrestrial resistivity sounding can also be calculated λ ratio, and can be drawn λ ratio of the quasi-section. Numerical simulations of several common two-dimensional models are carried out by finite element method, and ρAs and ρBs combined with three-electrode resistivity sounding at several measuring points are obtained. Then λ ratio is calculated. The results show that λ The ratio quasi-profile has good resolution both horizontally and vertically.