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

作　　者：王刚[1,2] 赵建粮 王烁[3] WANG Gang;ZHAO Jianliang;WANG Shuo(No.2 Institute of Geo-environment Survey of Henan, Zhengzhou Henan 450053, China;Henan Engineering Research Center of Deep Exploration, Zhengzhou Henan 450053, China;Hebei GEO University, Shijiazhuang Hebei 050031, China)

机构地区：[1]河南省地矿局第二地质环境调查院,河南郑州450053 [2]河南省深部探矿工程技术研究中心,河南郑州450053 [3]河北地质大学,河北石家庄050031

出　　处：《探矿工程（岩土钻掘工程）》2020年第3期59-63,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

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。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.

关 键 词：PHC管桩 CFG桩 基础选型 复合桩 桩基检测 

分 类 号：TU473.14[建筑科学—结构工程]