摘要
利用垂直土柱易混置换法,就不同质地土及不同的加溶质方式对F-在土中运移规律的影响进行了初步研究。研究结果表明:F-在粘粒含量高的的土中的水动力弥散系数和阻滞因子均大于在粘粒含量低的土中的水动力弥散系数和阻滞因子。在加溶质方式上,同时注入NaF和NaCl混合溶液比单独注入NaF溶液在浓度峰值到达时间上要来得慢些,浓度峰值也小,但在注入清水淋滤过程中合加NaF溶液时淋出氟的浓度比单加溶液时要大,表明NaCl溶液的加入对F-的运移有影响。
Transport of chemicals in soils could be influenced by some soil factors, such as soil moisture, texture, homogeneity, soil temperature, characteristic of chemicals and the way of inputting solute and so on. The influence of the texture and the way of inputting solute on transport of chemicals under the laboratorial conditions were studied. It was shown that the value of the hydraulic dispersion coefficient and the retardation factor in soil （mixture of sand and kaolin） was greater than that in sand, and the inputting of sodium chloride influenced transport rule of F in different soils.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2006年第9期1159-1162,共4页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金重点资助项目(50239010)
关键词
氟
运移规律
动态试验
fluorine
transport nile
dynamic test
