TITLE:
Research on Effect of Heap Loading on Deformation and Mechanical Properties of Bridge Double Pile Foundation on Steep Slope
AUTHORS:
Hao Luo
KEYWORDS:
High and Steep Slope, Double Pile Foundation, Numerical Modeling, Heap Load, Abaqus, Influence Degree
JOURNAL NAME:
Open Journal of Civil Engineering,
Vol.10 No.2,
April
30,
2020
ABSTRACT: In order
to analyze the deformation and stress characteristics of the pile foundation on
the slope, this paper uses the finite element software Abaqus for numerical
simulation. The displacement and stress data of pile under different working conditions
(the combination of heap load and vertical load and horizontal load and inclined
load) were collected; the distribution of pile displacement, axial force and bending moment were
analyzed. Simulation results show that: slope top loading has little effect on vertical
displacement; when the heap load exceeds 200 kPa, the horizontal displacement is greatly
affected. Pile axial force decreases with pile burial depth; pile lateral
resistance plays a more adequate role in the rock and soil layer. The bending moment
of double pile foundation is positive at the top and negative at the bottom. Applied oblique
load has obvious p-Δ effect.