摘要
野外渗水实验和机制研究的结果表明:在暂时性饱和水入渗条件下,浅部黄土中可以形成裂隙中的水分向孔隙的“单向流”过程;在非饱和流状态下,黄土中的裂隙和大孔隙不起导水作用,而产生水流屏障效应。
Results of the field infiltration test and analysis of mechanisms governing water flow indicate that: under temporal saturated infiltrating condition 'one - way flow '(from fracture to matrix) can occur in shallow loess; under unsaturated condition fracture and big pore in porous matrix do not play a role in water conducting, but result barriering effect.
关键词
包气带
渗流机制
黄土
裂隙
水流
unsatureted flow
machanisms governing water folw
one-way flow
loessial fracture
