摘要
建立了抽汲地下水非稳定流定解问题的三维数学模型,利用现有承压含水层非稳定流定解问题数值方程求解,重点讨论了源汇项的具体数学表达武。根据土的有效应办原理和压密原理推导出抽水沉降非线性弹性压密方程,结合武汉新业大厦水文地质与工程地质条件,利用已研制的三维有限元计算程序LCYXY3D.F90对该环境岩土工程问题进行了分析和评价,计算结果与实测结果符合较好。
This paper presents the establishement of three-dimensional mathematic model which is about unsteady flow of groundwater withdrawal. The existing numerical equation of three-dimensional unsteady flow of confined aquifer is used to solve it, and the numerical formulae of source-sink are emphatically discussed. Nonlinear compressive equation of land subsidence induced by groundwater withdrawal is derived from effective stress and compressive principle of soil. According to the conditions of hydrogeology and engineering geology of Xinye mansion in Wuhan, the environmental geotechnical problem is analyzed and evaluated by the calculation program of finite element LCYXY3D. F90, and the calculated results agree well with those measured.
出处
《地质科技情报》
CAS
CSCD
北大核心
2005年第B07期151-155,159,共6页
Geological Science and Technology Information
基金
国家自然科学基金资助项目(40372121
50279018)中国博士后基金资助项目(B3277A)
关键词
抽汲地下水
地面沉降
三维有限元法
环境岩土工程
非线性压密方程
groundwater withdrawal
land subsidence
three-dimensional finite element method
environmental geotechnique
nonlinear compressive equation
