EN-1对黄土性固化土水分垂直入渗特征的影响

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	EN-1对黄土性固化土水分垂直入渗特征的影响
	刘月梅 ; 张兴昌
刊名	农业机械学报
	2012
卷号	43 期号:11 页码:65-73
关键词	EN-1土壤固化剂 EN-1 soil stabilizer 入渗率 Infiltration rate 累积入渗量 Cumulative infiltration 数学模型 Mathematical models
其他题名	Effects of EN 1 Soil Stabilizer on Water Vertical Infiltration
中文摘要	采用一维垂直入渗试验方法,对不同容重、不同固化剂掺量处理的固化土水分入渗过程进行了研究。结果表明:黄绵土容重在1.2～1.4 g/cm3范围内,土壤容重对黄土性固化土的入渗能力有较大影响,土壤容重越大,对应于同一时刻入渗率越低,累积入渗量越小,湿润锋推进距离越短。3种土壤容重条件下,不同EN-1固化剂掺量对累积入渗量和湿润锋运移距离的影响均显著(P<0.05),且随着固化剂掺量增大,累积入渗量和湿润锋运移距离均有先增大后减小的趋势;固化剂掺量在0.05%～0.1%范围内累积入渗量最大;累积入渗量与湿润锋运移距离呈良好的线性关系。固化剂掺量对土层含水率的影响在低容重(1.2 g/cm3)条件下明显,随着容重增加,影响逐渐减小。利用Philip模型、Kostiakov经验公式和指数公式对固化土入渗率与入渗历时的关系进行拟合时发现,Kostiakov公式拟合值更接近于实测值,且容重越大,拟合精度越高。更多还原
英文摘要	Characteristics and dynamic changes of soil water infiltration under different soil bulk density and different stabilizer content were analyzed by one-dimensional vertical infiltration experiments． The results showed that soil bulk density had significant influences on infiltration capacity of stabilized soil from 1. 2 ～ 1. 4 g /cm3 of soil bulk density ranged． The influences of soil bulk density on infiltration rate were stable and constituent． With increasing soil bulk density，cumulative infiltration decreased． Stabilizer amendment amount had effects on cumulative infiltration and wetting front under the same soil bulk density． Cumulative infiltration were the highest at 0. 05% ～ 0. 1% amendment amount of EN-1 stabilizer，and were higher the control． There was good linear relationship between the amount of cumulative infiltration and the wetting front distance． With increasing amendment amount of EN-1 stabilizer，cumulative infiltration and wetting front had trend of increase first and decrease then． Fitting the relationship between infiltration rate and time with Philip model，Kostiakov empirical formula and index formula，the results showed Kostiakov formula was more accurate than other models and fitted values of its had the best results at higher soil bulk density．
语种	中文
公开日期	2014-07-10
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/5404]
专题	水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式 GB/T 7714	刘月梅,张兴昌. EN-1对黄土性固化土水分垂直入渗特征的影响[J]. 农业机械学报,2012,43(11):65-73.
APA	刘月梅,&张兴昌.(2012).EN-1对黄土性固化土水分垂直入渗特征的影响.农业机械学报,43(11),65-73.
MLA	刘月梅,et al."EN-1对黄土性固化土水分垂直入渗特征的影响".农业机械学报 43.11(2012):65-73.