寒冷地区多孔玄武岩碎石土路基级配研究

Study on Base gradation of porous basalt Macadam Road in Cold area

为探究寒冷地区多孔玄武岩碎石土路基的路用性能并高效地利用多孔玄武岩碎石土材料,本文通过测定不同级配多孔玄武岩碎石土在常规状态、干湿循环和冻融循环条件下的CBR值,得到不同环境下的P-L曲线,分析不同级配对各状态下CBR值的影响,从而确定最佳级配,以期为今后多孔玄武岩碎石土路基在寒冷地区的推广和应用提供有益的参考。

In order to explore the road performance of porous basalt macadam subgrade in cold area and make efficient use of porous basalt macadam soil materials,this paper measures the PL values of different gradation of porous basalt macadam soil under normal state,dry-wet cycle and freeze-thaw cycle,obtains CBR curves in different environments,and analyzes the influence of different grades on CBR values in each state,so as to determine the best gradation.It is expected to provide a useful reference for the popularization and application of porous basalt macadam subgrade in cold areas in the future.