花岗岩地区浅部地下水井位的快速确定

发布时间：2018-02-06 02:47

本文关键词： 测深天然电场选频法地下水花岗岩　出处：《水文地质工程地质》2017年05期 　论文类型：期刊论文

【摘要】：文章探讨在花岗岩地区地下水井位的快速定位问题,结合工程实践,采用三极电阻率测深法和天然电场选频法开展综合探测研究。首先实施三极电阻率测深剖面工作,对采集结果进行二维有限元反演研究,获得二维测深断面上低阻导电体的分布规律;在测深剖面上进一步开展天然电场选频法剖面勘探工作,得到低阻含水构造的水平精确位置,并进一步开展选频测深法的实践。后期的成井结果表明:三极电测深勘探成果的剖面异常比较直观,选频法则在异常体的地表水平定位方面比较精确,施工非常方便,两种方法相结合对地下水进行综合勘探是一种行之有效的办法。
[Abstract]:This paper discusses the rapid location of groundwater wells in granite area, combining with engineering practice. Three-pole resistivity sounding method and natural electric field frequency selection method are used to carry out comprehensive exploration research. Firstly, the three-pole resistivity sounding profile is carried out, and two-dimensional finite element inversion of the acquisition results is carried out. The distribution of low resistivity conductors on the two dimensional sounding section is obtained. The exploration work of natural electric field frequency selection method is carried out further on the sounding profile, and the horizontal precise position of the low resistivity water-bearing structure is obtained. Furthermore, the practice of frequency selection sounding method is carried out. The results of well completion in the later stage show that the section anomaly of the results of three-pole electric sounding exploration is more intuitive, and the frequency selection rule is more accurate in the horizontal positioning of the surface of abnormal body. It is very convenient to construct, and it is an effective method to combine the two methods to explore groundwater.
【作者单位】：湖南科技大学资源环境与安全工程学院;湖南科技大学岩土工程稳定控制与健康监测省重点实验室;湖南科技大学页岩气资源利用湖南省重点实验室;
【基金】：湖南省教育厅资助科研项目(16K031)
【分类号】：P631.7

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