冻土地区路面水泥稳定砂砾桩配合比设计研究

Study on Mix Ratio Design of Cement Stabilized Sand Gravel Pile in Frozen Soil Area

在寒冷的冻土地区,施工季节的气温仍然较低,有些地方甚至在夜间会达到0℃以下,这导致实际施工条件与室内的预期标准相差很大,因此,水泥稳定砂砾桩设计方法与传统的设计方法有许多不同之处。基于此,论文根据现场条件从原材料选定、无侧限抗压强度试验、试验配合比、生产配合比及制作注意事项5个方面,详细介绍了冻土地区路面水泥稳定砂砾桩配合比的设计过程。

In cold permafrost areas,the temperature during the construction season is still relatively low,and in some places it may even reach negative temperatures at night,which leads to a significant difference between the actual construction conditions and the expected in-door standards.Therefore,there are many differences between the design methods and the usual ones.Based on this,this article provides a detailed introduction to the design process of cement stabilized gravel pile mix proportion for pavement in permafrost areas,based on five aspects:selection of raw materials,unconfined compressive strength test,test mix proportion,production mix proportion,and production precautions,based on on-site conditions.