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Research on Extrusion Effect of Lime-soil Compacted Pile in Collapsible Loess
Pages: 15-18
Year: Issue:  10
Journal: Geotechnical Investigation & Surveying

Keyword:  夯扩挤密桩 湿陷性黄土 挤密效应 孔隙比 湿陷系数;
Abstract: 通过大量的现场试验数据分析,研究了湿陷性黄土地区夯扩挤密桩对改善黄土地基湿陷性的效果。根据桩周土孔隙比、挤密系数和湿陷系数沿桩体径向的分布规律,将桩周土分为"充分挤密区"、"有效挤密区"、"挤密影响区"和"非挤密区"四个区域。结合不同桩间距条件下桩间土体的室内试验,揭示了夯扩挤密桩桩间土挤密效应,为这种地基处理方法的合理设计提供了参考。
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