高密度电阻率法和激发极化法在抗旱找水定井位中的应用

摘要

Fengquan district in Xinxiang,Henan Province lacks of groundwater resources.To tackle this situa-tion,by using the high-density resistivity method,the combination of high-density resistivity method and in-duced polarization of symmetrical quadrupole,the authors prospected groundwater resources in complex hydro-geological condition of loose rock and bedrock regions,determined the well location based on hydrogeological data and well condition.The inferred results of high-density resistivity method and induced polarization of sym-metrical quadrupole was verified by drilling results,and the success rate of determining well location was 100%,and tracing groundwater resources achieved remarkable results in Fengquan area,which solved the problem of water for people and livestock.Through this practical application and effect analysis of combined geo-physical methods or single method in different hydrogeological conditions,the authors sumed up the choice of combination of high-density resistivity method and induced polarization method or high-density resistivity method for special hydrogeological condition in this area.The combination of geophysical methods improves accuracy and reliability of the geological interpretation,and it is popularized and applied in similar hydrogeological condi-tion in groundwater prospecting.This application of combined mode provides the reliable and scientific basis for determining well location in process of groundwater prospecting,and it provides important function for success rate of well drilling.%针对河南省新乡市凤泉区严重缺水现状，利用高密度电阻率法、高密度电阻率法与激发极化对称四极测深组合在水文地质条件复杂的松散层和基岩干旱地区勘查地下水，结合水文地质资料和成井条件所定的井位，后经施工钻孔验证，定井成功率100％，解决了人、畜急需用水问题。通过以上两种方法结合或单一方法在该地区不同水文地质条件下的实际应用和应用效果分析，总结出针对该地区特定的水文地质条件选择高密度电阻率法、高密度电阻率法与激发极化法组合模式。密度电阻率法和激发极化法组合模式在该地区地下水勘查中的运用提高了地质解释的准确性和可靠性，值得在类似水文地质条件和地区推广应用。