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

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

Issue:
2012年第01期
Page:
47-54
Research Field:
水资源与环境
Publishing date:

Info

Title:
Characteristics of Cretaceous aquifer and water supply prospect of Dusitu River Valley in Ordos Basin
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
Keywords:
groundwater;  water supply capacity;  drawdown;  exploitation intensity;  hydrological geology;  aquifer;  Dusitu River;  Ordos Basin
PACS:
P641
DOI:
-
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.

References:

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Last Update: 2012-03-20