论文部分内容阅读
结合地处严寒地区哈齐客专路基施工实践,分析严寒地区路基冻胀原因及影响因素,介绍了通过改良填料特性,设置筏板、保温护道、沥青封闭等技术措施,施工中严格控制填料细颗粒含量、含水量等关键点,并利用冬期进行堆载预压,较好地解决了严寒地区冻胀对路基的不良影响,可为同类工程提供借鉴。
Combined with the construction practice of Haqi-Passenger Dedicated Subgrade in cold region, the reasons and influencing factors of subgrade frost heave in severe cold area are analyzed. The technical measures of improving packing properties, setting raft, thermal insulation, asphalt sealing and so on are introduced. Fine particles, water content and other key points, and the use of winter pre-loading heap, a better solution to the adverse effects of frost heaving on roadbed in cold areas, which can provide reference for similar projects.