The Study Of 3D Resistivity Method's Physical Simulation And Data Processing System

DC law, whether in metal, non-metallic mineral research, geological survey or construction, or in the hydro-geological and engineering surveys, energy, geological survey, that has a more important measurement method, and in these areas have achieved a good geological effect. With the in-depth study of electrical theory, and technology progresses, the DC resistivity method is moving from one-dimensional measurement of the two-dimensional, three-dimensional measurement of direction. At present two-dimensional measurement already have a certain degree of development and has achieved considerable results, while the three-dimensional resistivity method is in its infancy, in theory, although some studies and there are numerical simulation studies, but there is still away from the practical application of a long way to go. Purpose of this paper is in three-dimensional physical simulation and data acquisition and processing system, do some research, hoping for the application of three-dimensional resistivity method to make some contribution.In this paper, the collection of existing instruments and an array of independently developed the level of collection instruments terrain, undulating topography and terrain with the physical simulation of geological body. Through a large number of experimental research, and constantly improve the way three-dimensional array of data collection methods and under different situations for processing collected data obtained from the analysis, from which a lot of numerical simulation can not be found in the experimental data for the three-dimensional theory of electrical development of very a good reference.In this paper, a variety of terrain model are basically consistent point of view, the left and right values. Physical simulation in the undulating surface electrode distance and terrain found in the coupling relationship is an important reason affecting measurement results, and the valley of the same scale topography and ridge topography of the measurement results of the impact varies widely. Electrode distance is less than the valley in diameter 1 / 3 the size, the topography effect is not large, the time can be considered to explain their neglect, will not do to correct; When the electrode is greater than the valley in diameter from 1 / 3 of the valley in diameter and less than 2 / 3, the valley terrain high resistance anomaly effects are not obvious, on the contrary, the results with the two bodies placed very close to the low resistivity anomalies similar effect, so this interpretation of the time when you must carefully analyze the impact of the main factors, and do a certain the terrain correction; when the electrode is greater than the valley from the diameter of 2 / 3, the valley topography effect is more obvious, showing a high resistance anomalies have values small valley at the edge of the low resistance anomalies in the terrain to be done to explain the time correction.The ridge topography of the measurement result is more obvious, no matter how much electrode distance, the ridge low resistance characteristics of the terrain can be shown, so for the ridge topography, to explain when the topographic correction is necessary.The article also made a study of normal field correction, normal field correction method can eliminate the background in most of the information in order to become more prominent abnormal the impact of geological bodies. In some cases, such a treatment can help to explain the data.The generation of data-processing software to facilitate data processing. Makes a vast array of data can be structured to organize, and process into the required content. For further mapping and inversion to provide an effective help...