PHC与CFG复合桩在郑州航空港区的应用

Application of PHC and CFG composite piles in the Zhengzhou Aviation Port area

摘要:

论述了PHC管桩和CFG桩的特点及适用条件。根据郑州航空港经济综合实验区护航中心工程建设场地的工程地质条件，分析了单一采用PHC管桩、CFG桩复合地基及钻孔灌注桩所存在的问题。根据地质条件和建筑物荷载情况，论述了选择PHC管桩与CFG桩复合应用的可行性、合理性。介绍了PHC与CFG复合桩在护航中心工程的施工技术及优化，分析了应用效果和遇到的问题，提出了解决问题的思路，创造了良好的效益。

Abstract:

The characteristics and applicable conditions of PHC pipe piles and CFG piles are discussed. Based on the engineering geological conditions at the construction site of the Escort Center of the Zhengzhou Aviation Port Economic Comprehensive Experimental Zone, analysis is made of the problems with separate use of PHC pipe piles, the CFG pile composite foundation and bored cast-in-place piles. In regard to the geological condition and the load condition of the building, the feasibility and rationality of selecting the combination of the PHC pipe pile and the CFG pile are discussed. This paper introduces the construction technology and optimization of the PHC and CFG composite pile for the Escort Center project. The application results and the problems encountered are analyzed with the approach to solve the problems put forward, which has produced good returns.