悬浮桩在国铁Ⅱ级铁路软基处理中的应用研究  

Study on Application of Floating Pile in Treatment of Soft Foundation for Ⅱ-Class National Railway

作　　者：曾小松[1] 侯德军[2] 

机构地区：[1]武汉铁路局计统处,武汉430071 [2]中铁二院工程集团有限责任公司,成都610031

出　　处：《路基工程》2014年第6期180-184,共5页Subgrade Engineering

摘　　要：针对国铁Ⅱ级铁路湄洲湾铁路支线工程,以多向水泥土搅拌桩加固软土地基,通过多种桩长和桩间距的理论计算与数据分析,寻求最经济合理的处理方案。结果表明:铁路支线工程采用悬浮桩加固软土地基,是可行而又经济合理的;国铁Ⅱ级铁路复合地基的承载力、路基稳定性和工后沉降,均满足《铁路特殊土路基规范》的要求。In relation to the branch line project of II-class national railway at Meizhouwan, the soft soil foundation thereof was reinforced by multi-directional cement-soil mixing piles and, by theoretical calculation and data analysis with various values of pile length and pile spacing, the most economic and proper treatment scheme was pursued. The result shows that the reinforcement of soft soil foundation by floating pile in railway branch line project is feasible and economic; the composite foundation of II-class national railway has the bearing capacity, subgrade stability and post-construction settlement meet the requirements in the Code for Special Soil Subgrade of Railways.

关 键 词：软土地基加固 悬浮桩 稳定性 工后沉降 桩长 桩间距 

分 类 号：TU473.14[建筑科学—结构工程]