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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第34卷

期数:

2012年第01期

页码:

47-54

栏目:

水资源与环境

出版日期:

2012-03-20

文章信息/Info

Title:

Characteristics of Cretaceous aquifer and water supply prospect of Dusitu River Valley in Ordos Basin

作者:

姜军¹; 徐永¹; 马媛²

1.中国地质调查局 西安地质调查中心,陕西 西安 710054; 2.长安大学 环境科学与工程学院,陕西 西安 710054

Author(s):

JIANG Jun¹;  XU Yong¹;  MA Yuan²

1. Xi’an Center of Geological Survey, China Geological Survey, Xi’an 710054, Shaanxi, China; 2. School of Environmental Sciences and Engineering, Chang’an University, Xi’an 710054, Shaanxi, China

关键词:

地下水;  供水量;  降深;  开采强度;  水文地质;  含水层;  都思兔河;  鄂尔多斯盆地

Keywords:

groundwater;  water supply capacity;  drawdown;  exploitation intensity;  hydrological geology;  aquifer;  Dusitu River;  Ordos Basin

分类号:

P641

DOI:

-

文献标志码:

A

摘要:

在鄂尔多斯盆地都思兔河流域供水水文地质详查的基础上,通过水文地质钻探、抽水试验、样品分析等手段,查明了流域含水层的结构、埋深以及含水层和隔水层在水平和垂直方向上的变化规律,探讨了各含水层之间的水力联系,并求取了含水层的水文地质参数; 对比圈定了包乐浩晓、巴彦布拉格、好勒包勒吉3处富水区; 采用地下水流数值模拟方法对上述3处富水区地下水开采量进行计算,提出了27种地下水开采方案,并经过对比得到地下水开采推荐方案。结果表明:包乐浩晓、巴彦布拉格、好勒包勒吉3处富水区主要补给为侧向径流及大气降水入渗补给,排泄方式以潜水面蒸发及向河流排泄为主; 在地下水浅埋区,结合含水层单井涌水量的大小,确定采用管井开采方式、中段悬挂式非完整井结构,平均布井,井深300 m,单一开采白垩系环河组的地下水,最大限度夺取潜水蒸发排泄量; 根据推荐方案,上述3个富水区总开采量达到123 500 m³/d,可为该地区地下水资源开发与利用提供技术保障。

Abstract:

Based on detailed hydrogeological survey of water supply of Dusitu River Valley in Ordos Basin, aquifer structure and buried depth were investigated, the changes of aquifer and confining bed in horizontal and vertical directions and the hydraulic connections between the different aquifers were discussed through hydrogeology drilling, pumping test and sample analysis, the hydrogeological parameters of aquifer were calculated; three water-rich areas including Baolehaoxiao, Bayanbulage and Haolebaoleji were selected for groundwater exploitation; the available groundwater was calculated by the means of subsurface flow numerical simulation model, and 27 kinds of schemes for groundwater exploitation were proposed, and the suggested schemes were found contrastively. The results showed that the main supplies for the three water-rich areas were lateral runoff and atmospheric water infiltration, and the main drainages were phreatic water table evaporation and draining into river; according to the water inflow of single well in different aquifers, tubular well exploitation mode and partially penetrated well structure in middle part suspension were selected, and pattern well spacing was average, and depth of well was 300 m, and the groundwater only in Huanhe Formation of Cretaceous was exploited in order to mostly utilize the evaporation and drainage of phreatic water; according to the suggested schemes, the total available groundwater was 123 500 m³/d in the three water-rich areas, and could provide technical support for the exploitation and usage of groundwater.

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备注/Memo

备注/Memo:

收稿日期:2011-07-04
基金项目:中国地质调查局项目(1212010734002); 中国地质调查局地质大调查项目(水[2010]矿评01-04-20)
作者简介:姜 军(1967-),男,湖北英山人,高级工程师,从事水文地质、工程地质研究,E-mail:jane8118159@163.com。

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更新日期/Last Update: 2012-03-20