【摘要】 黄土介质特有的垂直节理和大孔隙发育性质 ,使黄土包气带水分入渗过程具有与其它均匀土壤的非饱和水分运动不同的特征。通过试验场黄土包气带水分入渗试验和土壤水动力学理论分析 ,说明非饱和条件下黄土介质中的垂直节理对水分入渗几乎不起作用 ,而大孔隙对水分入渗起着显著的阻滞作用。更多还原

【Abstract】 Vertical joints and large pores existing uniquely in loess cause difference between loess and other homogenious soil media in water infiltration.Field test of water infiltration in loess aerated zone of and analysis with hydraulic theory of soil concludes that for the loess aerated zone of vertical joints existing in it makes little contribution to water infiltration under unsaturated condition,and large pores in the media would significantly retard water infiltration. (更多还原