饱和砂土的液化机理及处理实践

Liquefied Mechanism of Saturated Sandy Soil and Treatment Practice

饱和砂土在动力荷载作用下易发生液化而丧失承载能力 ,使路基填土遭受大规模的破坏。从饱和砂土的液化机理及其影响因素出发 ,结合山西省某高速公路采用碎石挤密桩对地震液化砂土层进行处理的实践 ,对加固前后土体各项物理力学指标进行了对比分析。

Under dynamic loading it is easy for saturated sandy soil to liquefy and lost bearing capacity, causing the subgrade fill to be destroyed in large scale. Based on the liquefied mechanism and the influencing factors of the saturated sandy soil and combing the practice of using the compacted gravel piles to treat the earthquake liquefied sandy soil in an expressway in Shanxi Province, this paper compares and analyzes all physical and mechanic targets of soil before and after being reinforced.