摘要
通过室内动三轴试验对黏土和黏土与EPS颗粒混合轻质土(LCES)在动荷载作用下的强度特性进行了对比研究.试验结果表明:LCES的动强度随着水泥质量分数的增大而增大,随着EPS颗粒质量分数的增大而减小,当水泥质量分数达到10%以上时,其动强度就超过黏土;EPS颗粒质量分数越大,水泥对LCES的动强度的影响越小;LCES和黏土的动强度都随着围压的增大而增大,但黏土的增幅比LCES略大.
Through the laboratory dynamic triaxial tests the comparative researches were performed on the dynamic strength characteristics of soft clay and lightweight clay-EPS beads soil（LCES） under dynamic loads. The test results indicate that the dynamic strength of LCES increases with the increase of the cement content, and it decreases with the increase of EPS content and is larger than that of the soft clay when the cement content exceeds 10%. The larger the EPS content, the smaller influence of cement content on the dynamic strength. The dynamic strengths of the soft clay and LCES both increase with the increase of the confining pressures, but the strength increment of the former is a bit larger than that of the latter.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第6期810-813,共4页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金(50479020)
教育部留学回国人员科研启动基金(2007599912)
关键词
黏土
EPS颗粒
轻质土
动强度特性
soft clay
EPS beads soil
lightweight clay
dynamic strength characteristic
