【摘要】 基于非饱和土壤有压入渗试验,研究了影响非饱和土壤水分有压积水入渗能力的主要因素。试验结果表明,有压积水入渗条件下,土壤入渗能力不仅受土壤基本物理特性(土壤质地、干容重和土壤含水量等)的影响,还受积水入渗水头的影响;在影响非饱和土渠床入渗能力的各因素中,干容重的影响最为明显,土壤质地的影响次之,积水入渗水头最弱。研究成果可为非饱和土渠床渗漏损失水量的数值计算模型提供参考。更多还原

【Abstract】 The main factors influencing the filtration capacity of unsaturated earth canal are experimentally studied.The results indicate that the infiltration capacity of unsaturated earth canal is influenced not only by physical properties of soil such as soil textile,soil density and soil moisture,but also by the water head of filtration.Among these main factors,the influence of soil density is the most which significantly affects the accumulated infiltration,the influence of soil textile is ranking the second and the water head of filtration is the weakest.更多还原