Topology-Optimized Cement-Soil Piles:Deformation Analysis of Soft Soil Foundations in Expressway
Along the Ye County to Lushan Expressway,there are extensive soft soil layers characterized by a high void ratio and high water content,which affect the expressway stability.This paper adopts the method of reinforcing soft soil foundations with cement-soil piles to enhance their bearing capacity and reduce foundation settlement.Numerical simulations are employed to investigate the effects of different pile lengths,pile spacings,and pile modulus on foundation settlement,and the optimal reinforcement condition is determined through comprehensive fuzzy evaluation.Hyperworks is used to optimize the pile arrangement of the cement-soil pile composite foundation,through comprehensive fuzzy evaluation,the highest cost performance is optimized to reduce the project investment.The results show that the vertical settlement center of the expressway foundation is large and the edge is small,and the settlement curve is approximately half a bowl.The longer the pile length,the smaller the pile spacing,the larger the pile modulus result in reduced foundation settlement,with pile spacing having a significant impact on the foundation settlement.The optimal pile arrangement can reduce the number of piles by 28%,and the uneven settlement of the foundation is reduced from the original 11.78 mm to 7.59 mm,which not only reduces the uneven settlement of the foundation but also lowers project costs.
Foundation reinforcementsoil-cement pilesoft soiltopological optimization
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