THEORETICAL SOLUTION OF PILING COMPACTION AND THE INFLUENCE OF PILE-SOIL-BOUNDARY CURVE HYPOTHESIS


 Research is ongoing to find theoretical solution three-dimensional piling compaction. Considering the spacial-axis-symmetric characteristics, boundary surface of pile-soil interaction expressed by polynomials different orders. First, curve family parameter introduced construct displacement and integral function. Then, derived combining constitutive relation model Duncan-Chang variational theory. Results engineering computing show that converges classical CEM limit equilibrium theory well at corresponding area. Moreover, effects polynomial orders on calculation results are not obvious. The conclusion in this paper can be used for reference derivation application other structure soil problems.