高密度电阻率法在山前冲积平原地层勘察中的应用

利用山前冲积平原岩土体间的电性差异,使用高密度电阻率测量系统,采用不同的装置,不同电极距对山前冲积平原地层进行岩土层界面的划分.比较不同装置的勘探效果,以及不同电极距的勘探效果,说明此种情况下使用哪种装置,哪种极距勘探效果更好.使用钻孔资料来证明视电阻率反演结果的正确性,通过反演结果校正钻孔资料可能存在的误差.这种相互验证的综合勘探方法,使最终的解释结果更贴合实际的地层分布.

Application of multi-electrode resistivity imaging to prospecting stratigraphic sequences in the piedmont alluvial plain

Electrical difference between the piedmont alluvial plain of rock and soil and multi-electrode resistivity measurement system are used with different devices and different electrodes distance to divide the layer interface of the piedmont alluvial plain strata.Comparison of exploration results of different devices and exploration results of different electrodes distance illustrates what case in which devices and electrodes distance are chosen can get more precise prospecting results.Borehole data are employed to confirm the truth of inversion results of apparent resistivity,and inversion results are used to regulate the possible deviation of borehole data.The integrated exploration approach by mutual authentication makes the final interpretation of results fit the actual stratigraphic distribution more accurately.