Background:
At present, there is few researches on the stability of the supporting structure of bored piles with
steel supports for deep foundation pits, and it is even less common to use this support method for deep foundation pits in
sandy pebble stratum. This paper studied the stability of the deep foundation pit support of the Southwest Jiaotong
University Station in Chengdu, China, using the stability analysis theory of bored piles with steel supports for deep
foundation pits
Objective:
The study aims to show the stability of steel supports for deep foundation pits
Methods:
The overall stability, anti-overturning stability and uplift stability of the foundation pit are important
components of the stability analysis of bored piles with steel supports for deep foundation pits. Aiming at the designed
method and parameters of the bored piles with steel support for the deep foundation pit, an in-depth theoretical analysis
and calculation of the overall stability, anti-overturning stability and uplift stability of the deep foundation pit is conducted
respectively
Results:
The results show that the stability of the deep foundation pit using bored piles with steel support meets the
requirements, meaning the design of this support form is safe and reasonable, thus ensuring the smooth progress of the
project.
Conclusion:
The stability analysis of deep foundation pits in sandy pebble stratum provides ideas for the optimization of
deep foundation pits and a reference for the stability analysis of deep foundation pits in sandy pebble stratum and other
types of stratum.