摘要
季节性冻土地基具有冬季冻胀、春季融沉的特性,在其上修筑的路基通常产生沉降和滑移变形,最终导致路基失稳。基于上述原因,通过介绍季节性冻土路基冻胀和融沉产生的机理,以及季节性冻土路基变形监测的原则和内容,并结合墨脱公路的监测结果对季节性冻土路基的稳定性进行分析评价。该研究对季节性冻土路基的设计、施工及稳定加固具有重要的指导意义。
The seasonal frozen soil ground has characteristics of frost heaving in winter and thawing settlement in spring, which produce settlement and slippage deformation that lead to subgrade instability in the last. Based on above reasons, the mechanism of the seasonal frozen soil subgrade＇s frost heaving and thawing settlement, and the principle and content of its deformation monitoring are introduced, then its stability is analysed and evaluated by combining with the monitoring results of the Mo-tuo highway. This study has an important guiding significance to the seasonal frozen soil subgrade＇s design, construction and stable reinforcement.
出处
《四川理工学院学报（自然科学版）》
CAS
2014年第2期70-72,共3页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
关键词
季节性冻土路基
冻胀融沉
变形监测
稳定性分析
seasonal frozen soil subgrade
frost heaving and thawing settlement
deformation monitoring
stability analysis
