Study on the Surface Subsidence in Ninghe County , Tianjin
详细信息
- 责任者：Wang Zhigang (Institute of Geology ; Tianjin Geological Exploration Bureau of North China ; Tianjin ; 300181 ; China) ; Song Xiaojun
- 刊名：Geological Survey and Research
- 出版年：2008
- 卷期：31(1)
- 关键词：地面沉降 ; land subsidence ; 地下水开采 ; groundwater exploitation ; 天津 ; Tianjin
- 页码：p.16-23
- 图表：5 illus., 2 tables, 12 refs.
- 分类号：1702
- issnNo：ISSN1672-4135
- isbnNo：CN12-1353/P
摘要
Based on the study of the groundwater mining quantity and surface subsidence from 1987 to 2005 and the tendency of the groundwater level change in the Ⅱ and Ⅲaquifers in Ninghe County, Tianjin, it is suggested that there is a clear relationship between the groundwater mining quantity and the subsidence rate, range and extent. The place where the groundwater pumped strongly is inosculated with the area of the subsidence center of the ground water(cone of exhaustion) and the surface subsidence. Therefore, the surface subsidence was mainly caused by the over-pumping groundwater in Ninghe County, Tianjin.