论文部分内容阅读
本文概要介绍了三维数值模拟中双网格系统的剖分方法,并通过几种典型模型的有限单元法三维数值模拟计算(网格单元电导率分块均匀、电位三线性变化),充分揭示了对称四极电阻率测深法三维地电模型视电阻率真假异常的分布规律,分析了产生真假异常的原因,并研究了真异常的形态与引起真异常的地质体位置的关系。
In this paper, the method of meshing of two-grid system in three-dimensional numerical simulation is briefly introduced. By means of three-dimensional numerical simulation of finite element method of several typical models (uniform conductivity of grid elements and tri-linear variation of potential) Symmetrical quadrupole resistivity sounding method is used to determine the distribution of true and false anomalies of resistivity. The causes of true and false anomalies are analyzed. The relationship between the true anomalies and the position of the geologic bodies causing true anomalies is also studied.