开采浅层地下水对地面沉降影响的探讨

苏锡常地区由于长期过量开采深层地下水，已诱发了严重的地面沉降灾害。为此，江苏省政府下达了在2005年全面禁采深层地下水的文件。为解决用水问题，许多专家、学者建议开采利用浅层地下水。在苏锡常地区开采浅层地下水是否会同样诱发严重的地面沉降问题，是目前争议的焦点。文章详述了苏锡常地区水文地质条件及地面沉降现状，确定了地面沉降的各种影响因素，分析对比了浅层地下水与深层地下水在开采条件下所能引起的地面沉降量，说明采用合理的开采工艺开发利用浅层地下水不会诱发严重的地面沉降。

Inquiring into the influence of shallow groundwater exploitation on land subsidence in Suzhou,Wuxi and Changzhou area

In Suzhou,Wuxi and Changzhou area,the land subsidence caused by the excess extraction of deep groundwater has become a serious hazard.Therefore the provincial government has made a decision that the extraction of deep groundwater in this area is completely prohibited from 2000 to 2005.In order to supply adequate water resources,many experts and scholars have suggested exploiting the shallow groundwater.However,the focus of the present dispute is whether the shallow groundwater exploitation will cause the same land subsidence problem as the deep groundwater did.In this paper,the hydro-geological condition,present situation of the land subsidence and the influence factors of the land subsidence are discussed in detail.The paper also analyzes and compares the differences of the descent volume of shallow groundwater and deep groundwater in the process of the extraction.It is concluded that the reasonable extraction of shallow groundwater can't cause the serious problem of the land subsidence.