CFG桩在遂渝线无砟轨道综合试验段中的应用

Application of CFG Pile in Ballastless Track Integrated Experimental Section of Suining-Chongqing Railway

研究目的:通过开展CFG桩在遂渝线无砟轨道综合试验段地基处理中的应用研究,提高对CFG桩的设计与施工的认识。研究结论:CFG桩复合地基设计时,桩体强度可采用5 MPa;CFG桩复合地基承载力一般在220-250 kPa,满足设计要求;路堤竣工后1个月CFG桩复合地基沉降已趋于稳定,路堤竣工后CFG桩复合地基沉降量较小,一般在10～25mm。

Research purposes:The research is done on the application of CFG pile in ballastless track integrated experimental section of Suining-Chongqing Railway for the purpose of learning more about CFG pile design and design. Research results:The strength of pile body can be designed to 5 MPa for CFG pile composite foundation and the beating capacity of CFG pile composite foundation is between 220 and 250 kPa in general,which can satisfy the design requirement.The one-month s post-construction subsidence of CFG pi...