Numerical Analysis of Horizontal Displacement in Pile-Supported Structure of Loess Excavation Pit
Pile-supported structures are widely used in loess excavation pits,yet there is still room for further optimization of design parameters affecting horizontal displacement.This paper utilizes numerical simulation methods to model the excavation and support process of a loess excavation pit,investigating the impact of anchor and pile parameters on the horizontal displacement of support piles.The results indicate that the displacement curve of piles generally exhibits a"bulging"shape,with maximum horizontal displacement occurring at a pile length of 5 meters.Anchor parameters significantly influence the horizontal displacement of support piles;increasing the free segment length of anchors by 3 meters and pre-tension by 60 kN reduces horizontal displacement by approximately 56%and 60%,respectively.Additionally,increasing the pile length and diameter appropriately also contributes to constraining horizontal displacement;a pile length of 10 meters and an outer diameter ranging from 600 to 800 mm are found to be optimal.These findings provide guidance for the engineering design and optimization of prefabricated pile applications in loess excavation pits.
NETL
NSTL
万方数据
