摘要
采用湿热耦合非等温流方程,结合实际蒸发和植物蒸腾的边界条件,考虑了水分迁移所引发的非饱和土应力变形行为,建立了大气-非饱和土相互作用的模型。采用该模型,可分析土体的湿热性状,计算由于水分变化所引起的土体变形,工程适用性较强。
Based on the equations of coupled moisture -heat anisothermal flow and the stress -strain relationship of unsaturated soil, the interaction model of atmosphere - unsaturated soil is established considering the boundary models of actual evaporation and vegetation transpiration. In this way, moisture - heat coupling behavior of unsaturated soil can be analyzed, and stress - strain characteristic, which is induced by the water transportation, may also be obtained. The compute model is suitable in engineering work.
出处
《常州工学院学报》
2008年第5期6-9,共4页
Journal of Changzhou Institute of Technology
关键词
大气作用
非饱和土
降雨
蒸发
植被蒸腾
effect of atmosphere
unsaturated soil
rainfall
evaporation
vegetation transpiration