Quantum mechanics

Engineering

Pile

Statistics

Geotechnical engineering

Materials science

Displacement field

Shear (geology)

Displacement (psychology)

Geology

Physics

Finite element method

Nonlinear system

Psychology

Mathematics

Political science

Psychotherapist

Block (permutation group theory)

Geometry

Composite material

Parametric statistics

Element (criminal law)

Structural engineering

Discrete element method

Modulus

Mechanics

Simulation Modelling Practice and Theory

To obtain deep insight into and understanding of the mechanical behavior and evolution of the lateral interaction between a single pile and soil-rock mixture material (S/RM), parametric two-dimensional discrete element analyses were performed to investigate the effects of different rock proportions. Adequate numerical simulations for the S/RM were first studied and verified by field direct shear tests. The results demonstrated that the binary discrete numerical models were able to capture the relative shear stress-displacement behavior with different rock proportions. Subsequently, the lateral mechanical behavior, as well as the microstructural evolution law, between the pile and S/RM was studied based on the two-dimensional DEM model. The effects of rock block proportion and size on the p-y curves of the single pile in the S/RM were investigated according to micromechanism analyses. Based on the modified initial modulus of the subgrade reaction and the ultimate resistance that can take into account different rock block contents, a new p-y model is proposed for the prediction of static laterally loaded pile response in S/RM.

A p-y model for predicting the lateral nonlinear interaction between pile and soil-rock mixture material based on discrete element modeling