The Study Of The Stress And Deformation Characteristics For Vertical Loading Piles

With the vigorous development of our national building engineering, pile foundation has played the most important role in the field, while until now, it is not very clear about the stress and deformation characteristics for vertical loading piles, Therefore it is not very consummate in present design method, furthermore from safety and economics of the construction ,the design method applied now still has some faults ,and further studies are expected.The stress and deformation characteristics under vertical loading are studied by numerical simulation in this paper .This paper is made of three parts: 1. This paper provide a more reasonable analyzing model than traditional methods, in which both layered soil and slip on interfaces can be thought about ; 2. This paper has analyzed the interaction between pile-soil and rigid raft, in this part, the elastic half space, finite unit-finite layer and elastoplastic model are all adopted, and some meaningful conclusions are drew ; 3. This paper has utilized optimization theory.and the inverse of soil parameters are studied in this part, By contrast of computed and applied data ,the reasonable of the method is verified.In this paper ,three programs are Designed :SINGLEPILE, PSWT, SUMP respectively applies to analyzing single pile, pile group and soil parameter study ,for short of time ,this paper has only designed pre-treat and after-treat of PSWT by means of multiple language programming method of Fortran and Visual Basic. All programs are successfully running under Windows XP.