According to the characteristics of loess subsidence
the external factors such as water content and load and internal factors such as microstructure and mechanics features are analyzed. Deformation mechanism of loess subsidence is deeply researched according to the theory of microstructure un-stability. It is found that the primary causes of loess subsidence are changes of forces on the microstructure and water content after soaking
Through the analysis
it is discovered that steadily of microstructure model has enormous relatedness with the stiffness and force state of the model .When the connection rigidity reduces