依据高密度电法的工作原理及勘探线长度与测深的经验公式,在贵州省某矿分别布设了300、600、900、1200m等不同长度的勘探线,以研究测量深度与勘探线长度的相关性.结果表明:高密度电法勘探线长度与测深成正比,在本区300、600、900、1200m勘探线的探测深度系数分别为0.353、0.467、0.496、0.408,均处于1/3～1/2;4条不同勘探线长度的最大隔离系数分别为6、16、24、24,随着隔离系数的增大,深度系数也相应增大；与较短勘探线比较,随着勘探线长度的加大及测深的增加,一些异常形态会发生变化,这将对某一深度异常的定性解释产生影响.%According to high-density electric method operating principle and prospecting line length and measured depth empirical formula, laid out 300m, 600m, 900m and 1200m different length prospecting lines, to study dependency between measured depth and prospecting line length. The result has demonstrated that: high-density electric method prospecting line length is directly proportional to measured depth. In the area, measured depth coefficients of 300m, 600m, 900m and 1200m prospecting lines are 0.353, 0.467, 0.496 and 0.408 respectively. Maximum isolation coefficients of the 4 different prospecting line lengths are 6, 16, 24 and 24 respectively, along with increasing of isolation coefficient, correspondingly, depth coefficient increasing. In comparison to shorter prospecting line, along with increasing of prospecting line length and measured depth, some anomalous configurations will be varied; it will make differences on qualitative interpretation of certain depth anomalies.
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