鲁中南基岩地区水文地质特征及地下水环境地质问题分析  

Analysis of hydrogeological characteristics and groundwater environmental geological problems in the bedrock area in central and southern Shandong province

作　　者：颜翠翠 谭志容 朱恒华[2,3] 王炜龙 YAN Cuicui;TAN Zhirong;ZHU Henghua;WANG Weilong(Shandong Geological Survey No.2 Hydrogeology and Engineering Geology Group(Shandong Lubei Geological Engineering Investigation Institute),Dezhou Shandong 253072,China;Shandong Geological Survey Institute,Jinan Shandong 250013,China;College of Environment,China University of Geosciences,Wuhan Hubei,430074,China)

机构地区：[1]山东省地勘局第二水文地质工程地质大队(山东省鲁北地质工程勘察院),山东德州253072 [2]山东省地质调查院,山东济南250013 [3]中国地质大学(武汉)环境学院,湖北武汉430074

出　　处：《钻探工程》2021年第3期152-160,共9页Drilling Engineering

基　　金：山东省省直地质勘查项目“山东省1∶5万莒县幅、大店幅区域水文地质调查”(编号:鲁勘字〈2016〉63号)。

摘　　要：基于在鲁中南低山丘陵基岩地区开展的1∶5万水文地质调查工作,通过水文地质调查、水文地质钻探、地球物理勘探、抽水试验、水质分析等技术方法,分析该区水文地质特征。研究结果表明:区内地下水类型划分为松散岩类孔隙水、碎屑岩类孔隙裂隙水、碳酸盐岩类裂隙岩溶水以及基岩裂隙水4类,并总结了其含水岩组富水性;分析了地下水补给、径流、排泄条件及其演化以及环境水文地质问题。圈定了有集中供水意义的第四系孔隙水富水地段3处,总结了地层阻水型蓄水构造和断层储水构造2种基岩蓄水构造类型。区内地下水质量以Ⅲ类、Ⅳ类和Ⅴ类为主,超过Ⅲ类水标准的组分主要是硝酸盐、总硬度、铁,其次为氟化物等。利用总结的区内找水模型,共施工具有供水意义的水文地质钻孔10眼,总涌水量7017.84 m^(3)/d,可解决近10万人生活和5900多亩农田灌溉用水问题。对于寻找新的供水目标含水层及找水定井工作具有指导意义。Based on the 1∶50000 scale hydrogeological survey carried out in the bedrock area of the low mountains and hills in the central and southern part of Shandong province,the hydrogeological characteristics are analyzed by means of hydrogeological survey,hydrogeological drilling,geophysical exploration,pumping test,water quality analysis and other technical methods.The results show that the groundwater types in the area can be divided into four types:loose rock pore water,clastic rock pore fissure water,carbonate rock fissure karst water and bedrock fissure water.The groundwater recharge,runoff,discharge conditions and their evolution as well as environmental hydrogeology are also analyzed.Three quaternary pore water rich zones with the capacity of centralized water supply are delineated,and two types of bedrock water storage structures:the stratigraphic water⁃retaining structure and the fault water⁃storage structure,are summarized.Groundwater quality is dominated with ClassⅢ,ⅣandⅤ,and the components higher than the ClassⅢstandard include mainly nitrate,total hardness,iron,followed by fluoride,etc.With the water prospecting model developed for the area,a total of 10 hydrogeological boreholes with water supply capacity were constructed,with a total water yield of 7017.84m^(3)/d,which can meet portable water supply for nearly 100,000 people and irrigation for more than 5900 mu farmland.The results can be used as guide for exploring new target aquifers for water supply and to locating water wells.

关 键 词：水文地质 地下水 孔隙水 裂隙水 岩溶水 基岩裂隙水 环境地质问题 供水井 涌水量 

分 类 号：P641[天文地球—地质矿产勘探] X143[天文地球—地质学]