水土保持通报2011，Vol.31Issue(5)：259-262,4.
多元结构抬田饱和-非饱和渗流三维控制数模优化分析
Optimizing Saturated and Unsaturated Seepage of Raising-farmland Based on Multi-component Three-dimensional Finite Element Analysis
摘要
Abstract
The soil water characteristic curve and unsaturated hydraulic conductivity gained from seepage tests in Xiajiang reservior area of Jiangxi Province,were fitted by the Van Genuchten（VG） model,and a new multi-component model consisting of plough layer,plough pan,impermeable layer and raising layer was established for the raising-farmland.A three-dimensional saturated-unsaturated mathematical model was also used to simulate the tests based on the parameters of the VG model.The results show that the mathematical model was reasonable and reliable.In addition,the effects of soil compaction and the thickness on the raising-farmland seepage were investigated.A large number of experiments were reduced by the mathematical analysis and the simulated parameters could be used in the engineering design and construction.关键词
土壤水吸力/非饱和渗流/多元结构/三维有限元Key words
soil water suction/unsaturated seepage/multi-structure/three-dimensional finite element分类
农业科技引用本文复制引用
郝红科,詹美礼,盛金昌,罗玉龙..多元结构抬田饱和-非饱和渗流三维控制数模优化分析[J].水土保持通报,2011,31(5):259-262,4.基金项目
国家自然科学基金项目“重大水利工程运用对下游区域防洪影响综合评价研究：以三峡—鄱阳湖系统为例” （）
“三向受压状态下土体的渗流—侵蚀—应力耦合管涌机理研究” （）
