According to surcharge precompression consolidation test on mud, the paper gives the relationship among the surcharge ratio,surcharge time and deformation after unloading.

At present, the reseach on drawbead has obtained some progess, but the study of the forming mechnics of drawbead needs to be improved, and the study of its effection on subsequent forming of sheet metal is deficient.

Research on continued deformation control of soft rock roadway in Fengying Mine;

, the continuous and the discontinuous deformation analysis methods.

The research status in quo and the last evolution of all these numerical methods are summarized through dividing them into two classes,that is,the continuous and the discontinuous deformation analysis methods.

Recognition of 2-dimensional continuous deformation image;

In this paper, we adopt a skill of remeshing procedure and an idea in classification of continuous deformation into those with and without preserving topological structures, and introduction of a new method for identifying continuous deformation.

As we know,the defects of the inferior anti-fouling performance,after-polished deformation and serious brittleness universally exists in the large-dimension polished tiles.