基于MODFLOW对天津宁河县的地面沉降预测研究  

Research on prediction of land subsidence based on MODFLOW in Tianjin Ninghe county

作　　者：宋小军[1] 

机构地区：[1]天津华北地质勘查局,天津300170

出　　处：《矿产勘查》2010年第6期564-568,共5页Mineral Exploration

摘　　要：文章根据研究区实际的水文地质及工程地质条件,对含水层和弱透水层进行概化,构建了水文地质概念模型和地层压缩模型,采用三维有限差分地下水流模型——MODFLOW及其携带的IBS程序包对该研究区各含水层组水位、地面沉降进行同步模拟,经过多次调参,选取了恰当的水文地质参数,建立了该区的准三维地下水流——一维地面沉降模型。以2008年的实际年均开采量为依据,对2015年的地面沉降趋势进行了预测,为今后开展地下水开采控制、建立地下水可持续开采模型提供了基础。According to the hydrological and engineering geology condition in the research area, the article summarized the aquifer and aquiclude and established the hydrological geologic model and formation compression model using three - dimensional finite difference under - groundwater flow model MODFLOW and its IBS program package to synchronous simulation for each aquifer water levels and land subsidence in the research area, the author debugs parameters repeatedly and, chooses proper hydrological geologic parameters and has established the linear land subsidence model, which is para - three - dimensional under - groundwater flow. On the basis of annul mean produced quantity in 2008, the author forecasts the tendency of land subsidence in 2015 in this article, which lays a foundation for the control of groundwater mining and the modeling of the sustained mining of groundwater.

关 键 词：地面沉降 地下水开采 MODFLOW数值模拟 天津宁河县 

分 类 号：TU478[建筑科学—结构工程]