严寒地带客运专线路基防冻胀施工技术

结合哈大客运专线路基施工实践,根据严寒地带客运专线砾石类A,B组填料路基的特点及季节性冻土的形成及路基病害发生的机理,提出针对季节性冻土路基病害的防治措施及设置原则,以保证客运专线轨道的平顺性、稳定性和耐久性。

Construction technology of subgrade frozen heaving resistance on passenger special line in cold region

Combining with the roadbed construction practice of Ha-Da passenger special line,according to characteristics of gravel A and B filling-subgrade,formation of seasonal frozen soil,and mechanism of roadbed disease on passenger special line in cold region,this thesis puts forward preventive measures and setting principles of roadbed disease with seasonal frozen soil,with a view to guarantee smooth,stable,and durable track of passenger special line.