Numerical Simulation of Factors Affecting Horizontal Displacement of Supporting Piles in Deep Foundation Pit
In order to analyze the influence of different influencing factors on the horizontal displacement of supporting structure,the finite ele-ment simulation method is used to establish a foundation pit model and study the relationship between the horizontal displacement of supporting structure and the depth of pile with temperature,internal friction Angle and the strength of pile concrete.The results show that the horizontal displacement of supporting piles decreases with the increase of pile depth.When the temperature increases by 1℃,the horizontal displacement of pile body decreases by 0.16 mm.When the friction Angle in soil layer increases by 1°,the horizontal displacement of pile body decreases by 0.68 mm.When the elastic modulus of pile concrete increases by 1 kPa,the horizontal displacement of pile body decreases by 3 mm.The change of elastic modulus of pile concrete has the greatest constraint on the horizontal displacement of pile,and high performance pile concrete should be used in the design of supporting structure within the scope of economic conditions.
Foundation pit engineeringSupporting pileNumerical simulationInfluencing factorsHorizontal displacement
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