东南大学学报（自然科学版）2016，Vol.46Issue(z1)：14-19,6.DOI:10.3969/j.issn.1001-0505.2016.S1.003
盐溶液作用下土的压缩及渗透特性预测方法
Prediction of compression and permeability behavior of salt-contaminated soils
摘要
Abstract
Due to that methods for predicting compression and permeability behavior of salt-contami-nated soils are efficient and cost-effective tools for the design and construction of engineered barriers and contaminated soil treatment, the results reported in previous studies are analyzed, quantitative evaluation is conducted to understand the influence factors on the compression index Cc and hydraulic conductivity k of salt-contaminated soils, and a series of equations for prediction are developed using physical properties. The results indicate that there exists a unique positive relationship between Cc and void ratio e1 at vertical effective stress of 1 kPa. The e1 value can be evaluated by using void ra-tio of liquid limit and initial void ratio. The predictive equation is developed for salt-contaminated soils based on the Kozeny-Carman equation. 91% of the predicted k values are found to fall in the range of 1/3 to 3 times those measured k values. The relationships between hydraulic conductivity ratio HCR and liquid limit ratio LLR for various salt-contaminated soils are approximately the same for a given void ratio. Thus, predictive method for HCR is developed by using LLR and void ratio.关键词
盐溶液/压缩指数/渗透系数/预测方法Key words
salt solution/compression index/hydraulic conductivity/predictive method引用本文复制引用
刘松玉,范日东,杜延军,唐朝生..盐溶液作用下土的压缩及渗透特性预测方法[J].东南大学学报（自然科学版）,2016,46(z1):14-19,6.基金项目
国家自然科学基金重点资助项目(41330641)、国家自然科学基金资助项目(41472258,51278100)、江苏省杰出青年基金资助项目(BK2012022)、东南大学优秀博士学位论文基金资助项目(YBJJ1343) （41330641）
