(洛阳有色金属加工设计研究院  471039)
【提要】  在洛阳湿陷性黄土地区的某高层建筑中，首次采用了CFG长桩加夯实水泥土短桩的多桩型复合地基，根据地基检测结果分析了其处理湿陷性黄土的效果，提出了该种类型复合地基的设计方法、施工处理措施。结果表明该设计方案可缩短工期、降低成本，可供土建设计人员参考。
【关键词】  湿陷性黄土  CFG桩  夯实水泥土桩  长短桩
CFG Pile Applied in Collapsible Loess Area/Hou Huakun (Luoyang Design & Research Institute of Nonferrous Metals Processing,Luoyang 471039,China)
Abstract:Long CFG pile and short rammed soilcement pile composite foundation in collapsible loess area is firstly used in a tallbuilding in Luoyang.The effect of ground treatment of collapsible loess by it is analyzed.The designing method and constructional treatment measures are developed.The results show that the composite foundation can save time and cost.The design can be as a reference to structure designers.
Keywords:collapsible loess；CFG pile；rammed soilcement pile；longshortpile composite foundation