Research on the application of steel inclined piles in soft soil deep foundation pit engineering
To investigate the applicability of steel inclined piles in soft soil deep foundation pit engineering,based on a soft soil deep founda-tion pit project in Fuzhou,a support scheme using steel inclined piles is proposed based on its engineering geological conditions,hydrogeo-logical conditions,and surrounding environmental conditions.Finite element analysis method and monitoring data verification are used to study the soil deformation,pile internal force,and deformation of soft soil deep foundation pit.The results show that:the use of steel inclined pile composite support structure can significantly reduce the lateral displacement and internal force of the support pile,and the cost of steel inclined piles is lower compared to concrete piles;For situations where the local soil quality is poor,the passive zone reinforcement in the pit can be used to increase the lateral resistance of the inclined pile,in order to meet the bearing capacity requirements of the inclined pile;The deformation monitoring data of the foundation pit support structure and surrounding environment have verified the applicability of steel inclined piles in soft soil deep foundation pit engineering,which can provide reference for similar soft soil deep foundation pit engineering.
Steel profilesTilt pileExcavation supportNumerical simulationInternal force deformation analysis
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