三维高密度电法正反演模拟阻尼系数最优设置研究

根据高密度电法的基本原理以及三维高密度电法的正演和反演理论，建立了三种典型模型进行正演模拟，再通过设置不同的阻尼系数对每种模型进行反演，分析反演结果并比较其优缺点，得出不同模型阻尼系数的选取对反演效果的影响规律。结果表明，通过选择最佳阻尼系数，既可减少反演计算收敛的迭代时间，又提高了反演分辨率和精度，从而得到更加精确的工程地质结构资料。

Study on Forward and Inverse Modeling of Optimum Settings of Damping Coefficient by 3D High Density Resistivity Method

On the basis of the rationale of high-density resistivity method and its forward and inverse modeling theory, three typical models were established for the purpose of forward modeling, and then by different settings of damping coefficient, inverse modeling was carried out against each model. Through analysis of the inverse modeling result and comparison of its advantages and disadvantages, the law how the selection of damping coefficient for each model affects the effect of inverse modeling was obtained. The study result shows that by choosing optimal damping coefficient, iterative time of the inversion calculation convergence may be reduced, as well as resolution and accuracy of the inversion improved, through which more accurate engineering geological structure may be obtained.