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水平层状介质的直流电阻率测深理论早在二十年代就已建立,但直到六十年代出版的量板仍以二、三层曲线为主.多层曲线只能借助三层或二层量板再加辅助量板图解来进行解释,方法繁琐,使用效果不能令人满意.六十年代后期,国外开始利用电子计算机解释电测深实测结果.国内只是在1976年以后才予以注意.有些单位也取得了一些结果.这种方法的实质是,用最优化方法对输入的实测曲线进行反演自动解释,要求实测曲线误差小、圆滑、利用前支能外推ρ_1,用后支能估计ρ_N.然而实测曲线往往不易达到这些要求.如果对曲线作过份的人为处理,又必然混入较大的误差信息,影响解释的正确性.本文介绍正演解释方法原理、编制程序及其实际应用.
The theory of direct resistivity sounding of horizontal layered media was established as early as the 1920s, but the volumetric panels published in the 1960s are still dominated by the second and third curves. In the late 1960s, foreign countries began to use electronic computers to explain the actual results of electric sounding tests, which were noticed in China until after 1976. Some The unit also achieved some results.The essence of this method is that the optimal method is used to inverse the input measured curve automatically, which requires that the measured curve error is small and smooth, using the ex ante branch to extrapolate ρ_1, ρ_N However, the measured curves are often not easy to meet these requirements.If the curve for excessive man-made processing, but also inevitably mixed with larger error information, affecting the correctness of interpretation.This paper describes the principles of forward interpretation method, the preparation of the program and its practical application .