CFG pile design of independent foundation on backfill soil foundation
CFG pile composite foundation is mainly used for multi-storey and high-rise buildings. In the past, researches and appli-cations were mainly for the relatively deep foundation. For the independent foundation of backfill foundation, in general there is more pile foundation and less CFG pile composite foundations. This paper compares and analyzes the pile foundation and CFG pile composite foundation from the perspectives of stress mechanism, deformation characteristics and engineering cost. It also discusses the advantages of CFG pile composite foundation. Besides, relying on specific engineering examples, the settlement calculation of CFG pile composite foundation on the independent foundation of backfill foundation is compared and analyzed under different specification conditions. The following conclusions are drawn: for the independent foundation with low bearing capacity, compared with the pile foundation, CFG pile composite foundation can greatly save the engineering cost under the premise of meeting the bearing capacity and deformation control. The design of CFG pile composite foundation on the independent foundation of backfill foundation is mainly based on settlement control. The bearing capacity calculation and settlement calculation should consider the ad-verse effect of filling soil, and the settlement calculation should be calculated in accordance with the overall collaborative calculation.
万方数据
维普
