河北工业大学 硕士学位论文 薄壁管桩复合地基沉降及受力分析 姓名:李凯 申请学位级别:硕士 专业:结构工程 指导教师:徐东强 20071201 薄壁管桩复合地基沉降及受力分析 ANALYSIS OF FORCE AND SETTLEMENT THE CONCRETE THIN-WALL PIPE POSIT FOUNDATION ABSTRACT Cast-in-situ concrete thin-wall pipe pile(PCC pile) is a new type of pipe pile,it has advantages of prestressed pipe pile,buffeting pipe-sunk piles and buffeting mould-sunk cutoff wall. And be in charge of the pole technology for the thin-wall making use of now to deposit concrete rationally, effective extension of making is put into use , the research bearing the weight of a force to the person certainly needs extremely. On the basis the main body of a book is studied in drawing whose prehominid's, calculating and optimizing design by the fact that the scene tests that the land base studying pole treatment is soft with ANSYS simulation analysis,to concrete thin-wall pipe post foundation thorough research and investigation and discussion. Simulation carrying out a pole when soil is analytical , often adopt the Goodman element to carry out a contact surface in Finite Element Method. By introducing non-linear behaviors (concrete behaviors, soil elastic and plastic behaviors and several classical methods of interfaceelement) ,and recur to ANSYS finite element currency software, and based on APDL languageprogramme form, the author made great effort on the mechanics characteristic modeling of pilefoundation by the vertical and horizontal dynamic ltoads. Thorough fact project,Yanhai road Tangshan high way,it’s analysis the concrete thin-wall pipe post foundation’s force and settlement under the mollisol ground,get the following conclution: 1. Thin-wall pipe posit foundation having very good load support capability and shock resistance , soft cotton-padded mattress bed course bearing the weight of to foundation has the active effect strenuously in land base. 2. Cushion and pole distance pound foundation and subside having very big effect, analysis reache