CAJ | 학술논문

随着高密度电阻率法在工程中的应用日益广泛，对分辨率的影响因素分析研究也受到重视。论文以均匀半空间局部直立异常体为探测目标，建立多个基于温纳高密度电法装置的地电模型，采用有限元等方法进行正反演数值模拟分析，对高密度电阻率法探测分辨率的影响规律进行探讨。分析表明，地形起伏会引起异常体的位置与形态发生畸变和位移，分辨率降低；电阻率差异增大，分辨率提高；深径比增大，分辨率降低；当异常体的水平范围一定时，探测分辨率随纵深的增大而提高。
수착고밀도전조솔법재공정중적응용일익엄범，대분변솔적영향인소분석연구야수도중시。논문이균균반공간국부직립이상체위탐측목표，건립다개기우온납고밀도전법장치적지전모형，채용유한원등방법진행정반연수치모의분석，대고밀도전조솔법탐측분변솔적영향규률진행탐토。분석표명，지형기복회인기이상체적위치여형태발생기변화위이，분변솔강저；전조솔차이증대，분변솔제고；심경비증대，분변솔강저；당이상체적수평범위일정시，탐측분변솔수종심적증대이제고。
In recent years,high-density electrical method have been used more and more widely and the researches on resolution influence factors analysis of the high-density electrical method have been drawn much attentions.This paper takes the partially erect anomaly of a uniform half-space as detect target,building different models to simulate and analyze with the Wenner high-density electrical device,employing 2DRES software to process forward and inverse numerical simulation and analysis to obtain the effects of the terrain,resistivity differences,depth to diameter ratio and deepening on the high-density electrical probe resolution.The results show that the undulating terrain makes the apparent resistivity anomaly location displaced,shape distorted and the resolution reduced;the detecting resolution of high-density resistivity method increases with the increase of resistivity difference;the detecting resolution decreases with the increase of depth to diameter ratio,and the detecting resolution increases with the increase of extended depth when the lateral width of certain anomalies reaching a critical level.Finally,the recommendations to improve the detecting resolution are given by combining the theoretical analysis and the engineering application.