Through the analysis on the distributing relationship among the deadweight stress,additional static stress and additional dynamic stress of the underlying soil for the three typical cross-sections with different settlements under the action of waves,the prelimi-nary standards distinguishing the dynamic softening of soft soil possibly occuring in this area are put forward.

Model test study on sectional form of highway tunnel lining;

Research of levee line layout of the urban flood protection levee and choice of sectional form;

Selection on economical section type of the high fill roadbed in the mountainous area;

Based on the analysis of hydrogeology and structural configuration for the Xuanwu Lake tunnel,the carrying capacity of the tunnel is calculated and analyzed in every selected typical section.

In the paper,Introduce a method of Auto-packaging based on Typical section,synthesizing working experience in packaging design and interior space determination of commercial car,discusses and concludes the general methods and procedures of packaging design and it is expected to offer help and references to development of new products and technical improvement.