Pile - Barrel Based On The Pull Test And Infrastructure Analysis

Pile-bucker foundation has extremely broad application prospect, the study of uplift experiment and structure analysis of pile-bucket foundation has very important theory significance to the using of it. As a new type of foundation, the study of the pile-bucket foundation is at the stage of experimentation at present. On the basis of the study of the pile foundation and the bucket foundation at the background of the ocean resource exploitation develop to blue water, this paper studied the uplift mechanism of pile-bucket foundation and analyzed the foundation structure.At first, the research results and the research actuality of the uplift theory of the foundation as well as the geotechnical engineering application of Particle Flow Code numerical simulation is introduced. From the research actuality of pile to the bucket foundation's, then the pile-bucket foundation structure concept and the correlated research is educed.Through a series of entire uplift model tests and half uplift model tests, the bearing capacity, the destruction form as well as the development of slide rupture body in soil of pile-bucket foundation are analyzed. The uplift mechanism of uniform-section pile is studied by Particle Flow Code numerical simulation. The distribution of pile shaft resistance and the formation of shear band as well as time-pile displacement relation, the distribution and velocity of particle and force chains distribution of sand of pile on uplift load are studied. The design conception of pile-bucket foundation is put forward. The pile-bucket foundation on uplift load is simulated by Particle Flow Code procedure and the time-pile displacement relation, the distribution and velocity of particle are also analyzed.Using classical shell theory, the structural stress and deformation of pile-bucket foundation are calculated and analyzed. The flexure and stress...