摘要
黄土不仅具有湿陷性,而且具有很高的地震易损性。本文通过强夯处理后黄土地基的动力本构模型、弹性模量、阻尼比、震陷性和液化势的试验研究以及波速和地脉动测试,定量评价了强夯处理对黄土地基抗震性能改善的效果,在此基础上,提出了将黄土地基震陷性与湿陷性进行一次性施工处理的技术标准。
Loess is water collapsible and vulnerable under earthquake. Through laboratory testing study on the dynamics constitutive model,elastic modulus,damping ratio,seismic subsidence and liquefaction and field test on wave velocity and ground tremor of loess ground treated with dynamic compaction,the effect of dynamic compaction on the seismic resistance of loess ground is evaluated quantitatively. Accordingly,the technical criteria for combinative treatment of loess ground for seismic subsidence and water collapsibility are proposed.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第z2期2840-2847,共8页
Chinese Journal of Rock Mechanics and Engineering
基金
科技部公益研究专项(2000-35)资助项目。
关键词
土力学
黄土地基
强夯
动力特性
抗震性能
soil mechanics,loess ground,dynamic compaction,dynamic characteristics,seismic resistance
