摘要
通过人工拌和击实的方法配制了不同含量的Na2SO4和MgCl2污染土,分别通过室内试验测试了不同Na2SO4和MgCl2含量污染土的物理指标和压缩系数,结果表明:受Na2SO4和MgCl2污染土的塑性指数Ip与液限WL之间存在着明显的线性相关关系;随着含盐量的增加,污染土的压缩系数减小;受到Na2SO4和MgCl2污染的土的压缩系数随压力的增大而减小,当压力小于200kPa时,降幅显著。
The artificial remould soil samples were tested in laboratory to investigate the effects of Na2SO4 and MgCl2 pollution on the physical properties and compressive indexes of silt soil. The plasticity index lp was linearly correlated with liquid limit WL for the silt soil polluted by Na2SO4 or MgCl2. The compression coefficient was decreased with the increament of salt content of polluted soil. In additional, the compression coefficient of polluted soil decreased as the compressive pressure increased, and the reduction was obvious when the pressure was less than 200 kPa.
出处
《中国科技论文》
CAS
北大核心
2012年第5期358-363,共6页
China Sciencepaper
基金
国家自然科学基金资助项目(51078253)
中国博士后科研基金资助项目(CPSF)(20110491632)
高等学校博士学科点专项科研基金资助项目(20111402120001)
山西省青年科技研究基金资助项目(2010021020-3)
山西省高等学校科技资助项目(201101005)
关键词
污染土
液限
塑性指数
压缩系数
polluted soil
liquid limit
plasticity index
compression coefficient
