文档介绍：浅析电阻率法在地质找水中的应用
摘要
电阻率法是一种多快好省的勘探方法,在地基勘察、坝基选线、水库或堤坝查漏、地裂缝探测、岩溶塌陷及采空区调查、在城市工程和环境地质调查等方面,均已发挥出重要作用,并取得良好效果。其在考古,管线探测,地质找水方面也取得了理想的成果,它在工程勘察中的应用也越来越广泛,尤其在岩溶、水文、构造、检测等领域,电阻率法的应用效果,已远远超过了理论上的预期。电阻率法由于其独特的优势,已经在越来越多的领域发挥其效用,取得了可喜的成果,从而进一步促进了高密度电法的成熟及其应用领域的扩大。基于此,本文在文献综述和理论分析的基础上,通过两个用电阻率法找水实例对电阻率法找水进行详细深入的分析和探讨。
关键词:电阻率法;电测;寻找地下水;砂岩;水井
ABSTRACT
The resistivity method is a better and more economical method of exploration in the foundation investigation, the dam foundation line selection, reservoirs or dams leak to crack detection, investigation of karst collapse and goaf, urban engineering and environmental geological survey, have to play an important role, and achieved good results. Its detection in archeology, pipelines, and geology to find water has also achieved the desired results, it has e increasingly widespread application in engineering investigations, especially in the field of karst, hydrology, construction, testing, the application effect of the resistivity method. has far exceeded the theoretical expectations. Resistivity because of its unique advantages, has been more and more areas to play its effectiveness, and achieved encouraging results, thus further promoting the maturation and expansion of application fields of high-density power law. Based on this, on the basis of literature review and theoretical analysis, by two resistivity method to find water instance water resistivity method to find detailed in-depth analysis and discussion.
Keywords: resistivity method; electrical measuring; the search for groundwater; sandstone; wells
目录
前言 1
一、电阻率法概述 1
二、电阻率法基本理论 2
工作原理 2
工作方法 4
三、电阻率法在四平市区找水应用实例 6
6
砂岩与非砂岩电阻率的差异 6
砂岩的厚度 7
屏蔽层和分析误差 7
砂岩在电测深曲线上的几种常见形式 8
打井深度的确定 9
四、电阻率法贵阳市抗旱找水定井中的应用实例 9
贵阳市区域地质及水文地质概况 9
物探方法选择 10
含水层异常特征 10
井位确定实例分析 11
结束语 12
参考文献 12
前言
水是人类生存的最基本条件,随着人类社会的进步和经济的发展以及人口的增加,对淡水的用量急增,加之水资源浪费与污染,使淡水资源越来越难已满足需要。世界上有几十个国家严重缺水,2/3 的人口面临缺水问题。我国被列为世界上 13 个人均水资源缺