激发极化法在牧区找水的初步认识

• 作 者: 杨广信
• 机 构: 内蒙牧区勘探钻井总队,
• 出 处: 内蒙古水利科技
• 发表日期: 1981年01期
• 关键词: 激发极化法 二次场电位差 找水 地下供电 电阻率法 供电电极 激发极化测深 激电 激发极化效应 一次场

一、激发极化法找水的基本原理电阻率法找水是通过电极往大地供电,根据不同岩层电阻率的差异,判别含水层,达到寻找地下水的目的. 激发极化法是利用二次场电位差衰减特性,判别含水层,从而找到地下水源. 用供电电极向地下供电期间和断电以后,测量电极上观测到的电位差随时间变化的曲线如(图A)

First, to stimulate the basic principle of polarization method to find water Resistivity method to find water through the electrode to the earth power supply, according to the difference in resistivity of different formation discriminant aquifers, to find the purpose of groundwater.Polarization polarization is the use of secondary field Potential difference attenuation characteristics, determine the aquifer, to find the groundwater source.With the power supply electrode to the underground power supply period and after the power failure, the measured electrode potential difference observed over time curve (Figure A)