Study Of Deformation Characteristics Of Foundation Soils And Application Under Plate Load Test

By using the method of plate load test, the deformation and settlement characteristics of foundation soils are systematically studied in this paper and the rules of deformation and settlement under homogeneously distributed load are discussed, which can complete the insufficiency of test technology in load test. The content includes followings:1. The settlement all round the plate which is different in shape and size are tested with crude foundation and composite foundation and the datum are calculated and analyzed;2. The stress and deformation in any spots of 3D foundation soils which is under rectangular homogeneously distributed load are calculated and analyzed by methods of elastic theory and FORTRAN program;3. The scope of foundation soils deformation under rectangular homogeneously distributed load is analyzed by the use of slide and move thread theory;4. By using the finite element analysis software of ANSYS, with engineering examples, the deformation characteristics of 3D elastic-plastic foundation soils under rectangular homogeneously distributed load are imitated and analyzed, at the same time, the method of settlement calculation of soils is checked.5. By contrasting and discussing the analysis results above, this paper put forwards proposals that are useful for foundation deformation analysis and improving the test precision of load test.