摘要
在比奥固结理论和污染物运移理论相结合的基础上,提出污染物在黏土防渗层中运移转化的一维数学模型,该模型的最大特点是考虑了土体受力变形对污染物运移的影响。在合理简化的基础上给出考虑污染源浓度随时间衰减情况下,污染物运移模型的解析解,对太湖疏浚堆场中底泥所含主要污染物的浓度随时空的分布进行模拟计算,并将模拟结果与不考虑土体压缩变形的污染物运移情况作比较。结果表明考虑土层固结后污染物运移的深度要小于不考虑土层固结的情况。
Combining Blot＇ s consolidation theory with contaminant transport theory, a one-dimensional mathematical model for contaminant transport in clay layers is developed. The distinct feature of the model is that the effect of soil deformation on contaminant transport is considered. Analytic solution of the model is sought by using reasonable assumptions, with the attenuation of contaminated fountain concentration being taken into account. The concentration distribution of a major contaminant in the Taihu dredged sediment field is calculated, and the results indicate that the depth of contaminant transport with soil consolidation is smaller than that without soil consolidation.
出处
《土木工程学报》
EI
CSCD
北大核心
2009年第9期104-108,共5页
China Civil Engineering Journal
基金
国家自然科学基金(No.50678003)
关键词
固结
压缩变形
多孔介质
污染物运移
模型
consolidation
compression deformation
porous medium
contaminant transport
model
