Three Dimensional Finite Element Analysis of the Influence of Wood and Steel Mixed Static Pressure Single Pile Penetration on Adjacent Underground Pipeline

Abstract

The static pressure single pile of light wood structure shows good seismic performance in
previous earthquakes. In this paper, the theoretical calculation method of four side clamped
plate is simplified. In this paper, the circular hole expansion theory is used to analyze the soil
squeezing effect of pile in the process of pile sinking. The test data show that the dead weight of
jacked pile machine, static earth pressure and pile tip squeezing effect are the main forces of
underground pipeline engineering. Based on this, this paper analyzes the mechanical model,
finds the dangerous section and monitors it. In this paper, the ANSYS finite element simulation
analysis of soil and supporting structure is carried out to verify the consistency between the
displacement distribution and stress distribution of the underground structure and the actual
engineering monitoring results.