首页 | 本学科首页   官方微博 | 高级检索  
     检索      

河谷区地下水人工回灌试验研究
引用本文:马兴华,何长英,李威,金家琼.河谷区地下水人工回灌试验研究[J].干旱区研究,2011,28(3):444-448.
作者姓名:马兴华  何长英  李威  金家琼
作者单位:青海省水文地质工程地质勘察院, 青海 西宁 810008
摘    要:河谷区采用现场坑灌和井灌试验,通过测定回灌量衰减和渗透系数的变化来分析回灌效果.坑灌回灌量中期衰减24%,后期衰减40%,在整个回灌过程中区域水位上升1.1~1.3 m,实际形成水丘规模很小,反映出试验层水平渗透能力强.井灌初期回灌量衰减33%,在后期基本稳定,但总趋势仍在衰减,含水层渗透系数以主孔为中心,由远到近渗透...

关 键 词:地下水  人工回灌  井灌  坑灌  渗透系数  西宁
收稿时间:2010-03-03;

Experimental Study on Artificial Groundwater Recharge in Valley
MA Xing-hua,HE Chang-ying,LI Wei,JIN Jia-qiong.Experimental Study on Artificial Groundwater Recharge in Valley[J].Arid Zone Research,2011,28(3):444-448.
Authors:MA Xing-hua  HE Chang-ying  LI Wei  JIN Jia-qiong
Institution:Qinghai Province Institute of Hydrogeology and Engineering Geology Prospecting, Xining 810008, China
Abstract:In this study, the groundwater recharge experiments by pit irrigation and well irrigation were carried out in a valley by measuring the attenuation of recharge volume and the variation of permeability coefficient so as to analyze the recharge effect. The results show that the attenuation of pit irrigation recharge volume was 24% at the metaphase and 40% at the last stage respectively, the rise of groundwater level varied in a range of 1.1-1.3 m, but the formed water dome was small, which reveals that the horizontal permeation capability of the test layer was high. The attenuation of well irrigation recharge volume was 33%, it was stable at the last stage, and the permeability coefficient of the aquifer was gradually decreased with the increase of distance away from the main hole. Recharge volume and permeability coefficient decreased rapidly at the early stage, then they were decreased gradually till relatively stable, and such process was universal. Mechanical blockage of pores was caused by suspended solids in the pit and well irrigation experiments, for the pit irrigation experiment, slurry was more direct, the groundwater recharge by irrigation was decreased with the increase of mud cake thickness. It is considered that the large-scale groundwater recharge should be dominated by pit irrigation.
Keywords:groundwater  artificial groundwater recharge  well irrigation  pit irrigation  permeability coefficient  Xinjiang
本文献已被 万方数据 等数据库收录!
点击此处可从《干旱区研究》浏览原始摘要信息
点击此处可从《干旱区研究》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号