上海城区地面沉降及其对地下水采灌量的响应

doi:10.11870/cjlyzyyhj201604005

长江流域资源与环境 >> 2016, Vol. 25 >> Issue (04): 567-572.doi: 10.11870/cjlyzyyhj201604005

上海城区地面沉降及其对地下水采灌量的响应

张建伟^1,2,4, 胡克², 岳玮³, 刘宝林², 王建², 高擎⁴

1. 青岛大学环境科学系, 山东青岛 266071;
2. 中国地质大学(北京)海洋学院, 北京 100083;
3. 山东省高密市环境保护局, 山东高密 261500;
4. 青岛地质工程勘察院, 山东青岛 266100

收稿日期:2015-07-09 修回日期:2015-09-15 出版日期:2016-04-20
作者简介:张建伟(1980~),男,博士后,主要研究方向为海岸带地质、环境地质等.E-mail:dragonzjw@126.com
基金资助:
国土资源部公益性行业科研专项(201011019-05);国家自然科学基金(41202175)

LAND SUBSIDENCE IN SHANGHAI CITY AND ITS RESPONSE TO GROUNDWATER EXPLOITATION AND REINJECTION

ZHANG Jian-wei^1,2,4, HU Ke², YUE Wei³, LIU Bao-lin², WANG Jian², GAO Qing⁴

1. Department of Environmental Sciences, Qingdao University, Qingdao 266071, China;
2. School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China;
3. Environmental Protection Bureau of Gaomi City, Shandong Province, Gaomi 261500, China;
4. Geo-Engineering Investigation Institute of Qingdao, Qingdao 266100, China

Received:2015-07-09 Revised:2015-09-15 Online:2016-04-20
Supported by:
Special Fund for Scientific Research in the Public Interest of Ministry of land and resources (201011019-05); National Natural Science Foundation of China (41202175)

摘要/Abstract

摘要： 上海城区地面沉降主要是由超采地下水、松散沉积地层压实等因素共同作用导致的,并引发多种次生灾害。F4分层标监测数据指示的地面沉降情况,显示上海城区地面沉降表现为总体具有非线性变化的规律,特别是1980年代以来,表现出垂向逐渐增大的特点,在空间上也不断扩展,直至2001年才始有缓和的趋势。在不同时段,随地下水开采量及开采层次的变化,上海城区地面沉降表现出不同的特征。结合1990~2009年20年内第四含水层地下水采灌量数据,得出地面沉降对地下水采灌量的响应关系为:地下水开采量增加,地层沉降量增大;地下水开采量减少,地层沉降量减小,但地面沉降相对于地下水开采具有滞后性;随着逐年的回灌,地层沉降量减小,且地下水回灌效果与回灌层位有直接关系。

关键词: 地面沉降, 分层标, 地下水, 采灌量, 响应关系

Abstract: Land subsidence in the Shanghai City is mainly caused by the over exploitation of groundwater and loose strata compaction. Land subsidence has led to many secondary disasters. The monitoring data of F4 layerwise mark shows that land subsidence in the Shanghai City generally presented nonlinear variation. Especially since the 1980s, the data showed gradual vertical increases and constant spatial expansion. This change was slowed down until the 2001. In different periods, with the changes of groundwater exploitation and mining level, land subsidence exhibited different characteristics. The 20 years (1990-2009) fourth aquifer data showed the response of land subsidence to groundwater exploitation and reinjection: the land subsidence increased with intensified groundwater exploitation, and reduced with decreased groundwater exploitation, but the land subsidence relative to the groundwater exploitation lagged behind. The land subsidence amount reduced with the increase of the reinjection, and the effect of the groundwater recharge had a direct relationship with the recharged aquifer.

Key words: the land subsidence, layerwise mark, groundwater, exploitation and reinjection, response relationship

中图分类号:

P641.69

张建伟, 胡克, 岳玮, 刘宝林, 王建, 高擎. 上海城区地面沉降及其对地下水采灌量的响应[J]. 长江流域资源与环境, 2016, 25(04): 567-572.

ZHANG Jian-wei, HU Ke, YUE Wei, LIU Bao-lin, WANG Jian, GAO Qing. LAND SUBSIDENCE IN SHANGHAI CITY AND ITS RESPONSE TO GROUNDWATER EXPLOITATION AND REINJECTION[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2016, 25(04): 567-572.

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