Aimed at illuminating the application of prestressed concrete technology and modern monitor method to solving difficult problem met in project, the generalized prestressed technique and the load ratio for prestressing were utilized reasonably.

A fuzzy reliability calculating model is given again based on function which includes generalized stress and generalized strength.

Based on the similar equations of the elastic-plastic model theory and the plastic deformation theory,this paper presents,according to the plastic model theory and the relations between generalized stress σi and strain εi curves of prototype materials,the resilience test model of elastoplastic stress analysis with .

In this paper,the method of virtual element and generalized initial stress is presented for developing software on FEM analysis of geotechnical excavation.

The study shows that both generalized shear stress and the first invariant function of stress tensor become smaller and smaller when pore pressure increases during the course of the development of sand boil.

According to the displacement theory of rock mass mechanics, we have combined the creep com-pliance theory of medium of rock mass and the theory of generalized earth stress and established the theory of strength for generalized earth stress.