Calculation Method for Settlement of CFG Pile-net Composite Foundation in High-speed Railway

摘要：

Combined with the field tests of CFG (Cement Flyash Gravel) pile-net (geogrid) composite foundation in Danyang Test Section of the Beijing-Shanghai Highspeed Railway, the pile-soil stress, additional stress and settlement of composite foundation are analyzed by theoretical analysis and numerical simulation. It shows that the distribution of additional stress solved by Mindlin-Boussinesq solution agrees reasonably well with the actual conditions, and the settlement of composite foundation calculated by layerwise summation method based on Mindlin-Boussinesq solution is consistent with the field measurement. The research results can provide references to the railway engineering which is strictly limited in the settlement of composite foundation.

关键词： CFG pile-net composite foundation additional stress settlement high-speed railway

作者: Cheng Jun Zhang Jiwen

作者单位: School of Civil Engineering Southeast University Nanjing, China

会议类型: 国际会议

会议名称: 2012 International Conference on Electric Technology and Civil Engineering(2012 电子技术与土木工程国际会议 ICETCE 2012)

会议地点: 三峡

会议语种:英文

页码: 3024-3028

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）