摘要
灰土桩成桩过程中,桩孔的径向扩张,使桩孔周围的土体产生径向压力,桩周一定范围内的桩间土层得以挤密,形成桩体和桩周挤密土组成的人工复合地基。这种复合地基对提高地基的承载能力,消除黄土地基土的湿陷性具有很好的作用。采用数值分析可以有效分析灰土挤密桩的影响范围,有助于设计人员确定桩间距和桩长等参数。
In the process of driving pile of lime-soil pile, the radical expansion of pile hole makes radical pressure which causes surrounding soil layer compact within limits. Thus the pile and its surrounding compaction soil compose artificial composite foundation. This kind of composite foundation will place a crucial role in load carrying capacity and eliminating the collapsibility of loess. Numerical analysis could effectively analyze the influence of lime soil compaction pile, it also help designers to determine parameters like pile spacing and pile length.
出处
《建筑技术》
2013年第9期853-855,共3页
Architecture Technology
关键词
灰土桩
挤密地基
数值分析
lime soil pile
compacted foundation
numerical analysis
