STUDY ON THE INFLUENCE ON DEWATERING INDUCED SETTLEMENT OF CFG PILE COMPOSITE FOUNDATION IN HIGH-PEED RAILWAY STATION

摘要

Goundwater is a key element in almost every construction project.The designs of high-speed railway station require the water pressure, s to be taken into account.Based on the foundation pit dewatering project ofWest Jinan Railway Station of Beijing-Shanghai High-speed Railway, it shows that the impact of dewatering is different on various length pile on the same cross-section of CFG pile composite foundation, and the longer pile length is not appreciably affected through field data.Affected area of CFG composite foundation in 35 m length is in 25 m.It sames as25 m to 15m.The variable length Pile region is affected more appreciably than non-variable length area.