【摘要】 目的针对宁夏某高速公路采用强夯法处理湿陷性黄土地基,需要消除黄土湿陷性,保证压实度设计要求.方法采用粉煤灰石灰二灰土来处理湿陷性黄土地基,即在湿陷性黄土里掺入适量的粉煤灰、石灰以及亚硫酸钠早强剂来处理湿陷性黄土地基.结果经过试验黄土的湿陷系数由0 074下降到0 006.结论使湿陷性黄土改变成了非湿陷性黄土,能够满足工程对地基土的要求.更多还原

【Abstract】 This paper intended to adopt dynamic compaction method to deal with the collapse loess ground of some expressways in Ningxia,and dispelled the loess collapsibility to ensure the degree of compaction could reach design requirements.The method was to adopt two lime soil of fly ash-lime to deal with the collapse loess ground,namely mixed right amount of fly ash,lime and sodium sulfite accelerator in the collapse loess to deal with the collapse loess ground.The result of the exploratory test was that the coefficient of collapsibility was dropped to 0.006 by 0.074.The conclusion was that this method changed the collapse loess to non-collapse loess;it could meet the demands for ground soil.更多还原