Test Research of Cfg Pile-raft Composisite Foundation in High-speed Railway

• 作 者: Ming ZHU Yaozong WU Jianlin MA
• 机 构: SchoolofCivilEngineering,SouthwestJiaotongUniversity,Chengdu610031,Sichuan,China
• 出 处: 高速铁路、线路工程设计理论、施工及养护技术国际学术会议
• 发表日期: 2009年11期
• 关键词: CFG pile pile raft foundation composite foundation subsidence pile-soil stress r

This paper combines the results of field trials to study the adoption of a raft CFG pile composite foundation working traits on a flexible foundation.This test study on the contents of the piles and the soil between the piles at top surface of the CFG pile,the relative deformation at top of the foundation on condition of stacking load,the pressure value of pile top and soils between them,the variation of groundwater level and pore water as well as the horizontal displacement of testing point accordance with depth.The results of the study can provide the measured value for parameters in.designing of the CFG pile raft composite foundation under Chinas high-speed railway embankment.