Analysis of Influencing Factors of Deformation of Deep Foundation Pit Supporting Structure
this paper relies on a building construction project in Fuzhou,Fujian Province,to analyze the influence of surrounding load and am-bient temperature on the deformation of different parts of foundation pit supporting structure.The results show that the horizontal displacement data of the top of foundation pit increases with the unloading of the top.With the continuous unloading of the top of the foundation pit,the sur-face settlement around the foundation pit continues to increase,but the closer the foundation pit is,the more obvious the cumulative settlement increase rate is.The further away from the foundation pit,the increasing rate of the accumulated settlement is not too significant.The longer the support is,the larger the horizontal displacement value of the support is as the temperature decreases.When the temperature drops by 10℃,the maximum horizontal displacement of the support is 12.1 mm.The horizontal displacement on the north side of the foundation pit decreases with the increase of temperature,while the horizontal displacement on the east side of the foundation pit does not change significantly with the change of temperature.The overall variation range of supporting axial force of foundation pit is not very significant,and the variation trend of supporting axial force at different positions is inconsistent.
Foundation pit engineeringSupporting structureInfluencing factorsStructural deformation
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