关键词: 直流电法, 布极方式, 超前探测, 测量精度

Abstract:

Through Dc electrode arrangement forward modeling, put forward emission electrode and measuring electrode pole pitch relationship formula. For there may be a key area of geological anomalies can be adjusted the two pole pitch at the same time, to improve the detection precision by increasing the detecting density way. After study found that the detection accuracy improved with electrode increase in the number arrangement. Through the contrast experiment of haploid and polyploid pole pitch, can improve detection precision by adjusting the pole pitch, solve the hard problem that Dc method is not high in the measurement accuracy and not accurate in position.

Key words: DC electric method, arrangement electrodes way, advanced detection, detection precision