摘要
为了使粗粒料二维数值试验更精确完善,针对数值模型的二维孔隙率与实际三维孔隙率等价性问题,设计能够囊括工程级配范围的一系列级配曲线,分别用二维、三维颗粒流程序模拟极值孔隙率试验,得出二维与三维极值孔隙率。研究结果表明,二维极值孔隙率与三维孔隙率具有较好的线性相关性。
For improving the accuracy of two-dimensional numerical simulation of coarse materials, the equivalence of two- dimensional porosity with actual three-dimensional porosity in two-dimensional numerical simulation is concerned. By making pfc2d, pfc3d numerical simulation studies of a typical series of grading curves which includes the grading of different rockfill dams, the results of two-dimensional porosity and corresponding three--dimensional porosity of different grading curves are obtained. The analysis results show that the relationship between two-dimensional extreme porosity and corresponding three- dimensional porosity is highly linear.
出处
《水力发电》
北大核心
2014年第5期27-29,47,共4页
Water Power
关键词
粗粒料
级配
孔隙率转换
数值模拟
coarse aggregate
gradation
porosity conversion
numerical simulation
