地下水开采-地面沉降模型研究  

Research on groundwater exploitation-land subsidence model

作　　者：陈崇希[1] 裴顺平[2] 

机构地区：[1]中国地质大学.武汉环境地质研究所,湖北武汉430074 [2]中国地震局地球物理研究所,北京100081

出　　处：《水文地质工程地质》2001年第2期5-8,共4页Hydrogeology & Engineering Geology

基　　金：国家"九五"重点科技攻关项目! (96 913 0 6 0 4)

摘　　要：本文建立三维流动 -一维非线性固结地面沉降模型 ,在混合井流、降雨滞后补给、初始水头形成、人为边界刻画、水流 -固结耦合及软土层固结滞后于地下水开采层水头变化等方面有所改进。所建模型用于苏州市 ,模拟出若干地面沉降重要特征 ,地面沉降中心偏离地下水漏斗中心 ,地面沉降动态滞后于地下水的水头动态 。A subsidence model with three dimensional groundwater flow coupled one dimensional nonlinear consolidation is established in the paper. In which some solutions are improved in multilayer well, hysteresis of rainfall recharge, initial head, artificial boundary, the coupling between groundwater flow and consolidation, and the consolidation hysteresis in soft soil. This model is applied to Suzhou city and the most important characters are shown, which include the departure between subsidence center and groundwater funnel center, the variation on land subsidence lagged behind which on water head, the permeation coefficients with consolidation, and the transfer feature of water head in soft soil.

关 键 词：地下水三维流 非线性固结 水流固结耦合 混合井 人为边界 滞后补给 地下水开采 地面沉降模型 

分 类 号：P641.2[天文地球—地质矿产勘探]