Macro-micro correlation analysis on the loess from Ili River Valley subjected to freeze-thaw cycles.

ABSTRACT: The Ili River Valley in Xinjiang, China, is a typical seasonal frozen area where loess landslide disasters have become increasingly common during the freeze-thaw periods in recent years. This study analyzed the macroscopic mechanical strength and microstructure changes of the Ili loess under different freeze-thaw cycles (FTCs) through the post-freeze-thaw triaxial compression test on the unsaturated soil in laboratory. Apart from the scanning electron microscopy (SEM), and the nuclear magnetic resonance (NMR), the macro-micro correlation analysis and the cluster-principal component analysis were applied for the theoretical discussion. The results indicated that the cohesive force of the loess exhibits an initial decreases, followed by the increases, and eventually keep stable after various

SUBMITTER: Lv Q 

PROVIDER: S-EPMC11335871 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature