重锤夯扩灰土挤密桩消除黄土地基湿陷性效果评价

摘要

In order to evaluate the effect of heavy hammer compaction of lime soil compaction pile on collapsibility elimination of foundation soil, based on the composite foundation engineering of a certain airport in the strong collapsible loess area in Lanzhou, related physics parameters of lime-soil were analyzed.The experimental results demonstrate that the piles had remarkable effects on eliminating the collapsibility of loess foundation by reducing the compression and eliminating the collapsibility of the composite foundation.%为评价重锤夯扩灰土挤密桩消除地基土湿陷性效果,依据位于兰州强烈湿陷性黄土地区某机场新航站楼复合地基工程,结合现场及室内试验检测结果,着重分析了处理前后桩土、桩间土相关物性参数.结果表明: 1) 在消除桩土湿陷性方面,该方法可作为一种能够有效的消除黄土地基的湿陷性新方法;2) 在消除桩间土湿陷性方面, 该方法在消除影响范围内的桩间土湿陷性方面的效果良好,具有参考价值.