高密度电法在新疆三河地区滑坡勘察中的应用

An Application of High Density Resistivity Method in Landslide Investigation in Sanhe Area Xinjiang

介绍了激发极化法中梯测量和对称四极测深测量在三河地区的实际应用,结合地质资料和岩石电阻率特征,利用激发极化法测量资料,查明了基岩埋深情况和岩溶裂隙有利发育地段,经钻孔验证,效果较好。综合分析认为:激发极化法中梯测量能够较准确探测覆盖层厚度和岩性分界情况;对称四极测深测量有较好的垂向分辨率,能够较准确探测基岩中裂隙带及溶洞发育含水情况,所以激发极化法是岩溶发育区勘查的有效技术手段。

In this paper, the practical application of ladder measurement and symmetrical quadrupole sounding measurements in Sanhe area is introduced. Combined with the geological data and the rock resistivity characteristics, the information of the bedrock is measured by the method of excitation polarization. In Karst fissure favorable development area, we think that the drilling verification and the effects are better. According to the comprehensive analysis, it is concluded that the ladder measurement of the induced polarization method can detect the thickness of the cover layer and lithology boundary accurately. The symmetrical quadrupole sounding measurement has a good vertical resolution, which can detect the fissure zone and cave development of water content. So, the excitation polarization method is an effective means of Karst development area exploration.