• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental earth sciences >Effect of moisture content on the time-dependent mechanical characteristics of loess
【24h】

Effect of moisture content on the time-dependent mechanical characteristics of loess

机译：Effect of moisture content on the time-dependent mechanical characteristics of loess

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

It is of great significance to study the time-dependent mechanical properties of loess, as they are closely related to loess landslides. The purpose of this study is to investigate the effect of moisture content on the time-dependent deformation, strength and failure behaviors of undisturbed loess specimens from Nangou in Yan'an city, Shanxi Province, China, via triaxial shearing tests and multi-loading triaxial creep tests. The tests revealed different failure modes and the corresponding strain-time loess responses, which depend on the long-term static load and moisture content. The higher the moisture content is, the more obvious the time dependence of loess and the longer the time to reach the stable stage. This effect is closely related to the weakening effect of water on interparticle cementation and friction between soil particles in loess. Compared with instantaneous shear, long-term shear induced by water weakens the strength of loess, mainly because the particles in soil can be fully adjusted over time. The microscopic shear process of loess is essentially a process of change in microstructure with water exposure, loading and time, but the shear processes of loess in different shear modes are different (i.e., long-term shear and instantaneous shear). This study provides a theoretical basis for engineering construction and geological disaster prevention in loess areas.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号